55367219478 has 32 divisors (see below), whose sum is σ = 115355243520. Its totient is φ = 17696530080.

The previous prime is 55367219431. The next prime is 55367219521. The reversal of 55367219478 is 87491276355.

It is a Curzon number.

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, 1345200 + ... + 1385747.

It is an arithmetic number, because the mean of its divisors is an integer number (3604851360).

Almost surely, 2^55367219478 is an apocalyptic number.

55367219478 is an abundant number, since it is smaller than the sum of its proper divisors (59988024042).

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

55367219478 is a wasteful number, since it uses less digits than its factorization.

55367219478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2731092.

The product of its digits is 12700800, while the sum is 57.

The spelling of 55367219478 in words is "fifty-five billion, three hundred sixty-seven million, two hundred nineteen thousand, four hundred seventy-eight".