51475724 has 6 divisors (see below), whose sum is σ = 90082524. Its totient is φ = 25737860.

The previous prime is 51475709. The next prime is 51475729. The reversal of 51475724 is 42757415.

It is a super-2 number, since 2×51475724² = 5299500322648352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51475729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6434462 + ... + 6434469.

It is an arithmetic number, because the mean of its divisors is an integer number (15013754).

Almost surely, 2^51475724 is an apocalyptic number.

It is an amenable number.

51475724 is a deficient number, since it is larger than the sum of its proper divisors (38606800).

51475724 is a wasteful number, since it uses less digits than its factorization.

51475724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12868935 (or 12868933 counting only the distinct ones).

The product of its digits is 39200, while the sum is 35.

The square root of 51475724 is about 7174.6584587700. The cubic root of 51475724 is about 371.9924748931.

The spelling of 51475724 in words is "fifty-one million, four hundred seventy-five thousand, seven hundred twenty-four".