55555231040 has 56 divisors (see below), whose sum is σ = 132311668320. Its totient is φ = 22218603008.

The previous prime is 55555231027. The next prime is 55555231057. The reversal of 55555231040 is 4013255555.

55555231040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×55555231040⁴ (a number of 44 digits) contains 4444 as substring.

It is a hoax number, since the sum of its digits (35) 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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3235919 + ... + 3253041.

Almost surely, 2^55555231040 is an apocalyptic number.

It is an amenable number.

55555231040 is an abundant number, since it is smaller than the sum of its proper divisors (76756437280).

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

55555231040 is a wasteful number, since it uses less digits than its factorization.

55555231040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27279 (or 27269 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 35.

Adding to 55555231040 its reverse (4013255555), we get a palindrome (59568486595).

The spelling of 55555231040 in words is "fifty-five billion, five hundred fifty-five million, two hundred thirty-one thousand, forty".