55523513430 has 192 divisors, whose sum is σ = 180419705856. Its totient is φ = 11509344000.

The previous prime is 55523513369. The next prime is 55523513431. The reversal of 55523513430 is 3431532555.

55523513430 is a `hidden beast` number, since 55 + 52 + 3 + 513 + 43 + 0 = 666.

It is a super-2 number, since 2×55523513430² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55523513431) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2908015 + ... + 2927045.

It is an arithmetic number, because the mean of its divisors is an integer number (939685968).

Almost surely, 2^55523513430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55523513430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90209852928).

55523513430 is an abundant number, since it is smaller than the sum of its proper divisors (124896192426).

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

55523513430 is a wasteful number, since it uses less digits than its factorization.

55523513430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19483 (or 19480 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 36.

The spelling of 55523513430 in words is "fifty-five billion, five hundred twenty-three million, five hundred thirteen thousand, four hundred thirty".