22520231453 has 4 divisors (see below), whose sum is σ = 22535418528. Its totient is φ = 22505044380.

The previous prime is 22520231407. The next prime is 22520231507. The reversal of 22520231453 is 35413202522.

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 22520231453 - 2⁶ = 22520231389 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 (22520231953) 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, 7591313 + ... + 7594278.

It is an arithmetic number, because the mean of its divisors is an integer number (5633854632).

Almost surely, 2^22520231453 is an apocalyptic number.

It is an amenable number.

22520231453 is a deficient number, since it is larger than the sum of its proper divisors (15187075).

22520231453 is a wasteful number, since it uses less digits than its factorization.

22520231453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15187074.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 22520231453 its reverse (35413202522), we get a palindrome (57933433975).

The spelling of 22520231453 in words is "twenty-two billion, five hundred twenty million, two hundred thirty-one thousand, four hundred fifty-three".