51924705802 has 4 divisors (see below), whose sum is σ = 77887058706. Its totient is φ = 25962352900.

The previous prime is 51924705797. The next prime is 51924705809. The reversal of 51924705802 is 20850742915.

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., 46246932601 + 5677773201 = 215051^2 + 75351^2 .

It is not an unprimeable number, because it can be changed into a prime (51924705809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12981176449 + ... + 12981176452.

Almost surely, 2^51924705802 is an apocalyptic number.

51924705802 is a deficient number, since it is larger than the sum of its proper divisors (25962352904).

51924705802 is a wasteful number, since it uses less digits than its factorization.

51924705802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25962352903.

The product of its (nonzero) digits is 201600, while the sum is 43.

The spelling of 51924705802 in words is "fifty-one billion, nine hundred twenty-four million, seven hundred five thousand, eight hundred two".