53989765451 has 4 divisors (see below), whose sum is σ = 54045027192. Its totient is φ = 53934503712.

The previous prime is 53989765391. The next prime is 53989765541. The reversal of 53989765451 is 15456798935.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53989765451 - 2²⁶ = 53922656587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53989765351) 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, 27629405 + ... + 27631358.

It is an arithmetic number, because the mean of its divisors is an integer number (13511256798).

Almost surely, 2^53989765451 is an apocalyptic number.

53989765451 is a deficient number, since it is larger than the sum of its proper divisors (55261741).

53989765451 is an equidigital number, since it uses as much as digits as its factorization.

53989765451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55261740.

The product of its digits is 40824000, while the sum is 62.

The spelling of 53989765451 in words is "fifty-three billion, nine hundred eighty-nine million, seven hundred sixty-five thousand, four hundred fifty-one".