55022293063978 has 64 divisors (see below), whose sum is σ = 90408763008000. Its totient is φ = 25014520065024.

The previous prime is 55022293063963. The next prime is 55022293063993. The reversal of 55022293063978 is 87936039222055.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (55022293063963) and next prime (55022293063993).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1213820418 + ... + 1213865746.

It is an arithmetic number, because the mean of its divisors is an integer number (1412636922000).

Almost surely, 2^{55022293063978} is an apocalyptic number.

55022293063978 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

55022293063978 is a deficient number, since it is larger than the sum of its proper divisors (35386469944022).

55022293063978 is a wasteful number, since it uses less digits than its factorization.

55022293063978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51919.

The product of its (nonzero) digits is 48988800, while the sum is 61.

The spelling of 55022293063978 in words is "fifty-five trillion, twenty-two billion, two hundred ninety-three million, sixty-three thousand, nine hundred seventy-eight".