51164002 has 4 divisors (see below), whose sum is σ = 76746006. Its totient is φ = 25582000.

The previous prime is 51163997. The next prime is 51164011. The reversal of 51164002 is 20046115.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 50282281 + 881721 = 7091^2 + 939^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12790999 + ... + 12791002.

Almost surely, 2^51164002 is an apocalyptic number.

51164002 is a deficient number, since it is larger than the sum of its proper divisors (25582004).

51164002 is a wasteful number, since it uses less digits than its factorization.

51164002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25582003.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 51164002 is about 7152.9016489813. The cubic root of 51164002 is about 371.2400613301.

The spelling of 51164002 in words is "fifty-one million, one hundred sixty-four thousand, two".