51410664 has 24 divisors (see below), whose sum is σ = 139237410. Its totient is φ = 17136864.

The previous prime is 51410651. The next prime is 51410677. The reversal of 51410664 is 46601415.

It is an interprime number because it is at equal distance from previous prime (51410651) and next prime (51410677).

It can be written as a sum of positive squares in only one way, i.e., 51408900 + 1764 = 7170^2 + 42^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 356947 + ... + 357090.

Almost surely, 2^51410664 is an apocalyptic number.

It is an amenable number.

51410664 is an abundant number, since it is smaller than the sum of its proper divisors (87826746).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51410664 is a wasteful number, since it uses less digits than its factorization.

51410664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714049 (or 714042 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 51410664 is about 7170.1230114971. The cubic root of 51410664 is about 371.8356887946.

Subtracting from 51410664 its reverse (46601415), we obtain a square (4809249 = 2193²).

The spelling of 51410664 in words is "fifty-one million, four hundred ten thousand, six hundred sixty-four".