51564630053 has 16 divisors (see below), whose sum is σ = 53612006400. Its totient is φ = 49542503040.

The previous prime is 51564630037. The next prime is 51564630067. The reversal of 51564630053 is 35003646515.

It is a cyclic number.

It is not a de Polignac number, because 51564630053 - 2⁴ = 51564630037 is a prime.

It is a super-2 number, since 2×51564630053² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51564629989 and 51564630016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51564630253) 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, 2538425 + ... + 2558657.

It is an arithmetic number, because the mean of its divisors is an integer number (3350750400).

Almost surely, 2^51564630053 is an apocalyptic number.

It is an amenable number.

51564630053 is a deficient number, since it is larger than the sum of its proper divisors (2047376347).

51564630053 is a wasteful number, since it uses less digits than its factorization.

51564630053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20852.

The product of its (nonzero) digits is 162000, while the sum is 38.

The spelling of 51564630053 in words is "fifty-one billion, five hundred sixty-four million, six hundred thirty thousand, fifty-three".