51671451 has 32 divisors (see below), whose sum is σ = 77701120. Its totient is φ = 30326400.

The previous prime is 51671447. The next prime is 51671461. The reversal of 51671451 is 15417615.

51671451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51671451 - 2² = 51671447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51671441) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 95241 + ... + 95781.

It is an arithmetic number, because the mean of its divisors is an integer number (2428160).

Almost surely, 2^51671451 is an apocalyptic number.

51671451 is a deficient number, since it is larger than the sum of its proper divisors (26029669).

51671451 is a wasteful number, since it uses less digits than its factorization.

51671451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667.

The product of its digits is 4200, while the sum is 30.

The square root of 51671451 is about 7188.2856787971. The cubic root of 51671451 is about 372.4633563041.

The spelling of 51671451 in words is "fifty-one million, six hundred seventy-one thousand, four hundred fifty-one".