53556136451 has 4 divisors (see below), whose sum is σ = 54310448304. Its totient is φ = 52801824600.

The previous prime is 53556136411. The next prime is 53556136489. The reversal of 53556136451 is 15463165535.

It is a happy number.

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 53556136451 - 2²⁶ = 53489027587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53556136411) 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, 377155820 + ... + 377155961.

It is an arithmetic number, because the mean of its divisors is an integer number (13577612076).

Almost surely, 2^53556136451 is an apocalyptic number.

53556136451 is a deficient number, since it is larger than the sum of its proper divisors (754311853).

53556136451 is an equidigital number, since it uses as much as digits as its factorization.

53556136451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754311852.

The product of its digits is 810000, while the sum is 44.

The spelling of 53556136451 in words is "fifty-three billion, five hundred fifty-six million, one hundred thirty-six thousand, four hundred fifty-one".