51874731 has 12 divisors (see below), whose sum is σ = 78874120. Its totient is φ = 32762880.

The previous prime is 51874681. The next prime is 51874741. The reversal of 51874731 is 13747815.

51874731 is a `hidden beast` number, since 5 + 187 + 473 + 1 = 666.

It is not a de Polignac number, because 51874731 - 2¹⁵ = 51841963 is a prime.

It is a super-2 number, since 2×51874731² = 5381975432644722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51874741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 151510 + ... + 151851.

Almost surely, 2^51874731 is an apocalyptic number.

51874731 is a deficient number, since it is larger than the sum of its proper divisors (26999389).

51874731 is a wasteful number, since it uses less digits than its factorization.

51874731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303386 (or 303383 counting only the distinct ones).

The product of its digits is 23520, while the sum is 36.

The square root of 51874731 is about 7202.4114711671. The cubic root of 51874731 is about 372.9511516410.

The spelling of 51874731 in words is "fifty-one million, eight hundred seventy-four thousand, seven hundred thirty-one".