55420202456 has 64 divisors (see below), whose sum is σ = 108877608000. Its totient is φ = 26411714560.

The previous prime is 55420202417. The next prime is 55420202479. The reversal of 55420202456 is 65420202455.

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, 15711365 + ... + 15714891.

It is an arithmetic number, because the mean of its divisors is an integer number (1701212625).

Almost surely, 2^55420202456 is an apocalyptic number.

It is an amenable number.

55420202456 is a deficient number, since it is larger than the sum of its proper divisors (53457405544).

55420202456 is a wasteful number, since it uses less digits than its factorization.

55420202456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4412 (or 4408 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

Subtracting 55420202456 from its reverse (65420202455), we obtain a palindrome (9999999999).

The spelling of 55420202456 in words is "fifty-five billion, four hundred twenty million, two hundred two thousand, four hundred fifty-six".