55530007520 has 96 divisors (see below), whose sum is σ = 141471798048. Its totient is φ = 20475721728.

The previous prime is 55530007483. The next prime is 55530007553. The reversal of 55530007520 is 2570003555.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1556927 + ... + 1592193.

It is an arithmetic number, because the mean of its divisors is an integer number (1473664563).

Almost surely, 2^55530007520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55530007520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70735899024).

55530007520 is an abundant number, since it is smaller than the sum of its proper divisors (85941790528).

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

55530007520 is a wasteful number, since it uses less digits than its factorization.

55530007520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36052 (or 36044 counting only the distinct ones).

The product of its (nonzero) digits is 26250, while the sum is 32.

The spelling of 55530007520 in words is "fifty-five billion, five hundred thirty million, seven thousand, five hundred twenty".