51474157 has 12 divisors (see below), whose sum is σ = 60775680. Its totient is φ = 43459416.

The previous prime is 51474151. The next prime is 51474197. The reversal of 51474157 is 75147415.

It is not a de Polignac number, because 51474157 - 2³ = 51474149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51474151) 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, 4557 + ... + 11122.

It is an arithmetic number, because the mean of its divisors is an integer number (5064640).

Almost surely, 2^51474157 is an apocalyptic number.

It is an amenable number.

51474157 is a deficient number, since it is larger than the sum of its proper divisors (9301523).

51474157 is a wasteful number, since it uses less digits than its factorization.

51474157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15760 (or 15753 counting only the distinct ones).

The product of its digits is 19600, while the sum is 34.

The square root of 51474157 is about 7174.5492541344. The cubic root of 51474157 is about 371.9887001809.

The spelling of 51474157 in words is "fifty-one million, four hundred seventy-four thousand, one hundred fifty-seven".