55131464 has 16 divisors (see below), whose sum is σ = 108812400. Its totient is φ = 26114832.

The previous prime is 55131449. The next prime is 55131469. The reversal of 55131464 is 46413155.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (55131469) 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, 181202 + ... + 181505.

It is an arithmetic number, because the mean of its divisors is an integer number (6800775).

Almost surely, 2^55131464 is an apocalyptic number.

It is an amenable number.

55131464 is a deficient number, since it is larger than the sum of its proper divisors (53680936).

55131464 is a wasteful number, since it uses less digits than its factorization.

55131464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362732 (or 362728 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 55131464 is about 7425.0564981015. The cubic root of 55131464 is about 380.5980057934.

The spelling of 55131464 in words is "fifty-five million, one hundred thirty-one thousand, four hundred sixty-four".