383550552540 has 192 divisors, whose sum is σ = 1245829939200. Its totient is φ = 97779737088.

The previous prime is 383550552533. The next prime is 383550552547. The reversal of 383550552540 is 45255055383.

383550552540 is a `hidden beast` number, since 3 + 8 + 3 + 5 + 50 + 5 + 52 + 540 = 666.

It is an interprime number because it is at equal distance from previous prime (383550552533) and next prime (383550552547).

It is a super-2 number, since 2×383550552540² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (383550552547) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25937989 + ... + 25952771.

It is an arithmetic number, because the mean of its divisors is an integer number (6488697600).

Almost surely, 2^383550552540 is an apocalyptic number.

383550552540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 383550552540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (622914969600).

383550552540 is an abundant number, since it is smaller than the sum of its proper divisors (862279386660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

383550552540 is a wasteful number, since it uses less digits than its factorization.

383550552540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16913 (or 16905 counting only the distinct ones).

The product of its (nonzero) digits is 1800000, while the sum is 45.

The spelling of 383550552540 in words is "three hundred eighty-three billion, five hundred fifty million, five hundred fifty-two thousand, five hundred forty".