55964731 has 4 divisors (see below), whose sum is σ = 59256792. Its totient is φ = 52672672.

The previous prime is 55964669. The next prime is 55964737. The reversal of 55964731 is 13746955.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13746955 = 5 ⋅2749391.

It is a cyclic number.

It is not a de Polignac number, because 55964731 - 2¹⁵ = 55931963 is a prime.

It is a super-2 number, since 2×55964731² = 6264102231804722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55964737) 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, 1646005 + ... + 1646038.

It is an arithmetic number, because the mean of its divisors is an integer number (14814198).

Almost surely, 2^55964731 is an apocalyptic number.

55964731 is a deficient number, since it is larger than the sum of its proper divisors (3292061).

55964731 is a wasteful number, since it uses less digits than its factorization.

55964731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3292060.

The product of its digits is 113400, while the sum is 40.

The square root of 55964731 is about 7480.9578932113. The cubic root of 55964731 is about 382.5059016277.

The spelling of 55964731 in words is "fifty-five million, nine hundred sixty-four thousand, seven hundred thirty-one".