55413772 has 24 divisors (see below), whose sum is σ = 98537040. Its totient is φ = 27264000.

The previous prime is 55413767. The next prime is 55413781. The reversal of 55413772 is 27731455.

It is a super-2 number, since 2×55413772² = 6141372254535968, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97104 + ... + 97672.

It is an arithmetic number, because the mean of its divisors is an integer number (4105710).

Almost surely, 2^55413772 is an apocalyptic number.

It is an amenable number.

55413772 is a deficient number, since it is larger than the sum of its proper divisors (43123268).

55413772 is a wasteful number, since it uses less digits than its factorization.

55413772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921 (or 919 counting only the distinct ones).

The product of its digits is 29400, while the sum is 34.

The square root of 55413772 is about 7444.0427188457. The cubic root of 55413772 is about 381.2465343410.

The spelling of 55413772 in words is "fifty-five million, four hundred thirteen thousand, seven hundred seventy-two".