55074956388 has 12 divisors (see below), whose sum is σ = 128508231600. Its totient is φ = 18358318792.

The previous prime is 55074956371. The next prime is 55074956393. The reversal of 55074956388 is 88365947055.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×55074956388² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2294789838 + ... + 2294789861.

It is an arithmetic number, because the mean of its divisors is an integer number (10709019300).

Almost surely, 2^55074956388 is an apocalyptic number.

It is an amenable number.

55074956388 is an abundant number, since it is smaller than the sum of its proper divisors (73433275212).

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

55074956388 is a wasteful number, since it uses less digits than its factorization.

55074956388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4589579706 (or 4589579704 counting only the distinct ones).

The product of its (nonzero) digits is 36288000, while the sum is 60.

The spelling of 55074956388 in words is "fifty-five billion, seventy-four million, nine hundred fifty-six thousand, three hundred eighty-eight".