55078476 has 12 divisors (see below), whose sum is σ = 128516472. Its totient is φ = 18359488.

The previous prime is 55078417. The next prime is 55078477. The reversal of 55078476 is 67487055.

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

It is not an unprimeable number, because it can be changed into a prime (55078477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2294925 + ... + 2294948.

It is an arithmetic number, because the mean of its divisors is an integer number (10709706).

Almost surely, 2^55078476 is an apocalyptic number.

It is an amenable number.

55078476 is an abundant number, since it is smaller than the sum of its proper divisors (73437996).

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

55078476 is a wasteful number, since it uses less digits than its factorization.

55078476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4589880 (or 4589878 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 42.

The square root of 55078476 is about 7421.4874519870. The cubic root of 55078476 is about 380.4760331475.

The spelling of 55078476 in words is "fifty-five million, seventy-eight thousand, four hundred seventy-six".