55115404 has 6 divisors (see below), whose sum is σ = 96451964. Its totient is φ = 27557700.

The previous prime is 55115363. The next prime is 55115413. The reversal of 55115404 is 40451155.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6889422 + ... + 6889429.

Almost surely, 2^55115404 is an apocalyptic number.

It is an amenable number.

55115404 is a deficient number, since it is larger than the sum of its proper divisors (41336560).

55115404 is a wasteful number, since it uses less digits than its factorization.

55115404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13778855 (or 13778853 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 55115404 is about 7423.9749460784. The cubic root of 55115404 is about 380.5610456672.

Adding to 55115404 its reverse (40451155), we get a palindrome (95566559).

The spelling of 55115404 in words is "fifty-five million, one hundred fifteen thousand, four hundred four".