55455404 has 12 divisors (see below), whose sum is σ = 100177728. Its totient is φ = 26833200.

The previous prime is 55455403. The next prime is 55455427. The reversal of 55455404 is 40455455.

It is not an unprimeable number, because it can be changed into a prime (55455401) 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, 223487 + ... + 223734.

It is an arithmetic number, because the mean of its divisors is an integer number (8348144).

Almost surely, 2^55455404 is an apocalyptic number.

It is an amenable number.

55455404 is a deficient number, since it is larger than the sum of its proper divisors (44722324).

55455404 is a wasteful number, since it uses less digits than its factorization.

55455404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447256 (or 447254 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 32.

The square root of 55455404 is about 7446.8385238301. The cubic root of 55455404 is about 381.3419864398.

The spelling of 55455404 in words is "fifty-five million, four hundred fifty-five thousand, four hundred four".