51573081002 has 8 divisors (see below), whose sum is σ = 77421562500. Its totient is φ = 25765893504.

The previous prime is 51573080983. The next prime is 51573081017. The reversal of 51573081002 is 20018037515.

51573081002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 47497407721 + 4075673281 = 217939^2 + 63841^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 51573081002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10320377 + ... + 10325372.

Almost surely, 2^51573081002 is an apocalyptic number.

51573081002 is a deficient number, since it is larger than the sum of its proper divisors (25848481498).

51573081002 is a wasteful number, since it uses less digits than its factorization.

51573081002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20647000.

The product of its (nonzero) digits is 8400, while the sum is 32.

The spelling of 51573081002 in words is "fifty-one billion, five hundred seventy-three million, eighty-one thousand, two".