51215962 has 8 divisors (see below), whose sum is σ = 87798816. Its totient is φ = 21949692.

The previous prime is 51215933. The next prime is 51215977. The reversal of 51215962 is 26951215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1829128 + ... + 1829155.

It is an arithmetic number, because the mean of its divisors is an integer number (10974852).

Almost surely, 2^51215962 is an apocalyptic number.

51215962 is a deficient number, since it is larger than the sum of its proper divisors (36582854).

51215962 is a wasteful number, since it uses less digits than its factorization.

51215962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3658292.

The product of its digits is 5400, while the sum is 31.

The square root of 51215962 is about 7156.5328197389. The cubic root of 51215962 is about 371.3656907218.

The spelling of 51215962 in words is "fifty-one million, two hundred fifteen thousand, nine hundred sixty-two".