51330951 has 72 divisors (see below), whose sum is σ = 93354144. Its totient is φ = 26593920.

The previous prime is 51330943. The next prime is 51330959. The reversal of 51330951 is 15903315.

It is an interprime number because it is at equal distance from previous prime (51330943) and next prime (51330959).

It is not a de Polignac number, because 51330951 - 2³ = 51330943 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51330959) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 841461 + ... + 841521.

Almost surely, 2^51330951 is an apocalyptic number.

51330951 is a deficient number, since it is larger than the sum of its proper divisors (42023193).

51330951 is a wasteful number, since it uses less digits than its factorization.

51330951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 2025, while the sum is 27.

The square root of 51330951 is about 7164.5621638730. The cubic root of 51330951 is about 371.6434104596.

The spelling of 51330951 in words is "fifty-one million, three hundred thirty thousand, nine hundred fifty-one".