51617876 has 6 divisors (see below), whose sum is σ = 90331290. Its totient is φ = 25808936.

The previous prime is 51617873. The next prime is 51617887. The reversal of 51617876 is 67871615.

It can be written as a sum of positive squares in only one way, i.e., 44542276 + 7075600 = 6674^2 + 2660^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51617873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6452231 + ... + 6452238.

It is an arithmetic number, because the mean of its divisors is an integer number (15055215).

Almost surely, 2^51617876 is an apocalyptic number.

It is an amenable number.

51617876 is a deficient number, since it is larger than the sum of its proper divisors (38713414).

51617876 is a wasteful number, since it uses less digits than its factorization.

51617876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12904473 (or 12904471 counting only the distinct ones).

The product of its digits is 70560, while the sum is 41.

The square root of 51617876 is about 7184.5581631719. The cubic root of 51617876 is about 372.3345835517.

The spelling of 51617876 in words is "fifty-one million, six hundred seventeen thousand, eight hundred seventy-six".