55025047136821 has 8 divisors (see below), whose sum is σ = 55033155321984. Its totient is φ = 55016939413920.

The previous prime is 55025047136681. The next prime is 55025047136849. The reversal of 55025047136821 is 12863174052055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55025047136821 - 2⁴³ = 46228954114613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55025047136881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289545585 + ... + 289735561.

It is an arithmetic number, because the mean of its divisors is an integer number (6879144415248).

Almost surely, 2^{55025047136821} is an apocalyptic number.

It is an amenable number.

55025047136821 is a deficient number, since it is larger than the sum of its proper divisors (8108185163).

55025047136821 is a wasteful number, since it uses less digits than its factorization.

55025047136821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231131.

The product of its (nonzero) digits is 2016000, while the sum is 49.

The spelling of 55025047136821 in words is "fifty-five trillion, twenty-five billion, forty-seven million, one hundred thirty-six thousand, eight hundred twenty-one".