51371451 has 6 divisors (see below), whose sum is σ = 74203220. Its totient is φ = 34247628.

The previous prime is 51371431. The next prime is 51371461. The reversal of 51371451 is 15417315.

51371451 is a `hidden beast` number, since 513 + 7 + 145 + 1 = 666.

It is not a de Polignac number, because 51371451 - 2⁶ = 51371387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51371431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2853961 + ... + 2853978.

Almost surely, 2^51371451 is an apocalyptic number.

51371451 is a deficient number, since it is larger than the sum of its proper divisors (22831769).

51371451 is a wasteful number, since it uses less digits than its factorization.

51371451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5707945 (or 5707942 counting only the distinct ones).

The product of its digits is 2100, while the sum is 27.

The square root of 51371451 is about 7167.3880179602. The cubic root of 51371451 is about 371.7411266914.

Adding to 51371451 its reverse (15417315), we get a palindrome (66788766).

The spelling of 51371451 in words is "fifty-one million, three hundred seventy-one thousand, four hundred fifty-one".