51232906 has 8 divisors (see below), whose sum is σ = 77092740. Its totient is φ = 25535328.

The previous prime is 51232897. The next prime is 51232919. The reversal of 51232906 is 60923215.

It can be written as a sum of positive squares in 2 ways, for example, as 50282281 + 950625 = 7091^2 + 975^2 .

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, 39771 + ... + 41038.

Almost surely, 2^51232906 is an apocalyptic number.

51232906 is a deficient number, since it is larger than the sum of its proper divisors (25859834).

51232906 is a wasteful number, since it uses less digits than its factorization.

51232906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81128.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 51232906 is about 7157.7165353205. The cubic root of 51232906 is about 371.4066397166.

The spelling of 51232906 in words is "fifty-one million, two hundred thirty-two thousand, nine hundred six".