221525632512053 has 4 divisors (see below), whose sum is σ = 221525830840320. Its totient is φ = 221525434183788.

The previous prime is 221525632512049. The next prime is 221525632512091. The reversal of 221525632512053 is 350215236525122.

It is a happy number.

221525632512053 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 221525632512053 - 2² = 221525632512049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221525632511995 and 221525632512013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221525632512553) 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, 97479143 + ... + 99725796.

It is an arithmetic number, because the mean of its divisors is an integer number (55381457710080).

Almost surely, 2^{221525632512053} is an apocalyptic number.

It is an amenable number.

221525632512053 is a deficient number, since it is larger than the sum of its proper divisors (198328267).

221525632512053 is a wasteful number, since it uses less digits than its factorization.

221525632512053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198328266.

The product of its (nonzero) digits is 1080000, while the sum is 44.

The spelling of 221525632512053 in words is "two hundred twenty-one trillion, five hundred twenty-five billion, six hundred thirty-two million, five hundred twelve thousand, fifty-three".