53555564025131 has 4 divisors (see below), whose sum is σ = 61206358885872. Its totient is φ = 45904769164392.

The previous prime is 53555564025091. The next prime is 53555564025179. The reversal of 53555564025131 is 13152046555535.

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 53555564025131 - 2¹⁰ = 53555564024107 is a prime.

It is a super-2 number, since 2×53555564025131² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53555564025131.

It is not an unprimeable number, because it can be changed into a prime (53555564025191) 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, 3825397430360 + ... + 3825397430373.

It is an arithmetic number, because the mean of its divisors is an integer number (15301589721468).

Almost surely, 2^{53555564025131} is an apocalyptic number.

53555564025131 is a deficient number, since it is larger than the sum of its proper divisors (7650794860741).

53555564025131 is an equidigital number, since it uses as much as digits as its factorization.

53555564025131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7650794860740.

The product of its (nonzero) digits is 6750000, while the sum is 50.

The spelling of 53555564025131 in words is "fifty-three trillion, five hundred fifty-five billion, five hundred sixty-four million, twenty-five thousand, one hundred thirty-one".