55316012 has 24 divisors (see below), whose sum is σ = 101606400. Its totient is φ = 26299856.

The previous prime is 55316003. The next prime is 55316033. The reversal of 55316012 is 21061355.

It is a super-2 number, since 2×55316012² = 6119722367168288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

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, 14789 + ... + 18147.

It is an arithmetic number, because the mean of its divisors is an integer number (4233600).

Almost surely, 2^55316012 is an apocalyptic number.

It is an amenable number.

55316012 is a deficient number, since it is larger than the sum of its proper divisors (46290388).

55316012 is a wasteful number, since it uses less digits than its factorization.

55316012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3565 (or 3563 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 55316012 is about 7437.4734957511. The cubic root of 55316012 is about 381.0222062316.

Adding to 55316012 its reverse (21061355), we get a palindrome (76377367).

The spelling of 55316012 in words is "fifty-five million, three hundred sixteen thousand, twelve".