51442306 has 32 divisors (see below), whose sum is σ = 86002560. Its totient is φ = 22953216.

The previous prime is 51442271. The next prime is 51442327. The reversal of 51442306 is 60324415.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122565 + ... + 122983.

It is an arithmetic number, because the mean of its divisors is an integer number (2687580).

Almost surely, 2^51442306 is an apocalyptic number.

51442306 is a deficient number, since it is larger than the sum of its proper divisors (34560254).

51442306 is a wasteful number, since it uses less digits than its factorization.

51442306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 51442306 is about 7172.3291893220. The cubic root of 51442306 is about 371.9119583916.

The spelling of 51442306 in words is "fifty-one million, four hundred forty-two thousand, three hundred six".