55531475392 has 56 divisors (see below), whose sum is σ = 116820324144. Its totient is φ = 26100436992.

The previous prime is 55531475381. The next prime is 55531475407. The reversal of 55531475392 is 29357413555.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 868918 + ... + 930634.

Almost surely, 2^55531475392 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 55531475392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58410162072).

55531475392 is an abundant number, since it is smaller than the sum of its proper divisors (61288848752).

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

55531475392 is a wasteful number, since it uses less digits than its factorization.

55531475392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62573 (or 62563 counting only the distinct ones).

The product of its digits is 2835000, while the sum is 49.

The spelling of 55531475392 in words is "fifty-five billion, five hundred thirty-one million, four hundred seventy-five thousand, three hundred ninety-two".