51214636 has 12 divisors (see below), whose sum is σ = 97773480. Its totient is φ = 23279360.

The previous prime is 51214613. The next prime is 51214663. The reversal of 51214636 is 63641215.

51214636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51214636² = 5245877881224992, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 581941 + ... + 582028.

It is an arithmetic number, because the mean of its divisors is an integer number (8147790).

Almost surely, 2^51214636 is an apocalyptic number.

It is an amenable number.

51214636 is a deficient number, since it is larger than the sum of its proper divisors (46558844).

51214636 is a wasteful number, since it uses less digits than its factorization.

51214636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163984 (or 1163982 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 51214636 is about 7156.4401765123. The cubic root of 51214636 is about 371.3624857630.

The spelling of 51214636 in words is "fifty-one million, two hundred fourteen thousand, six hundred thirty-six".