5415571725621 has 8 divisors (see below), whose sum is σ = 7221608154624. Its totient is φ = 3609958223520.

The previous prime is 5415571725601. The next prime is 5415571725667. The reversal of 5415571725621 is 1265271755145.

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

It is not a de Polignac number, because 5415571725621 - 2²⁶ = 5415504616757 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5415571725601) 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, 105701845 + ... + 105753066.

It is an arithmetic number, because the mean of its divisors is an integer number (902701019328).

Almost surely, 2^{5415571725621} is an apocalyptic number.

It is an amenable number.

5415571725621 is a deficient number, since it is larger than the sum of its proper divisors (1806036429003).

5415571725621 is a wasteful number, since it uses less digits than its factorization.

5415571725621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211463451.

The product of its digits is 2940000, while the sum is 51.

The spelling of 5415571725621 in words is "five trillion, four hundred fifteen billion, five hundred seventy-one million, seven hundred twenty-five thousand, six hundred twenty-one".