53702992561 has 4 divisors (see below), whose sum is σ = 54845609472. Its totient is φ = 52560375652.

The previous prime is 53702992517. The next prime is 53702992591. The reversal of 53702992561 is 16529920735.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53702992561 - 2⁷ = 53702992433 is a prime.

It is a super-2 number, since 2×53702992561² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53702992591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 571308385 + ... + 571308478.

It is an arithmetic number, because the mean of its divisors is an integer number (13711402368).

Almost surely, 2^53702992561 is an apocalyptic number.

It is an amenable number.

53702992561 is a deficient number, since it is larger than the sum of its proper divisors (1142616911).

53702992561 is a wasteful number, since it uses less digits than its factorization.

53702992561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142616910.

The product of its (nonzero) digits is 1020600, while the sum is 49.

The spelling of 53702992561 in words is "fifty-three billion, seven hundred two million, nine hundred ninety-two thousand, five hundred sixty-one".