51552520451 has 16 divisors (see below), whose sum is σ = 57049453440. Its totient is φ = 46363914240.

The previous prime is 51552520433. The next prime is 51552520457. The reversal of 51552520451 is 15402525515.

It is a cyclic number.

It is not a de Polignac number, because 51552520451 - 2¹⁰ = 51552519427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51552520457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 491195 + ... + 586836.

It is an arithmetic number, because the mean of its divisors is an integer number (3565590840).

Almost surely, 2^51552520451 is an apocalyptic number.

51552520451 is a deficient number, since it is larger than the sum of its proper divisors (5496932989).

51552520451 is a wasteful number, since it uses less digits than its factorization.

51552520451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078174.

The product of its (nonzero) digits is 50000, while the sum is 35.

The spelling of 51552520451 in words is "fifty-one billion, five hundred fifty-two million, five hundred twenty thousand, four hundred fifty-one".