22542405431 has 16 divisors (see below), whose sum is σ = 27999048000. Its totient is φ = 17672110848.

The previous prime is 22542405427. The next prime is 22542405443. The reversal of 22542405431 is 13450424522.

It is not a de Polignac number, because 22542405431 - 2² = 22542405427 is a prime.

It is a super-2 number, since 2×22542405431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22542405401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1126406 + ... + 1146243.

It is an arithmetic number, because the mean of its divisors is an integer number (1749940500).

Almost surely, 2^22542405431 is an apocalyptic number.

22542405431 is a deficient number, since it is larger than the sum of its proper divisors (5456642569).

22542405431 is a wasteful number, since it uses less digits than its factorization.

22542405431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2272778.

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 22542405431 its reverse (13450424522), we get a palindrome (35992829953).

The spelling of 22542405431 in words is "twenty-two billion, five hundred forty-two million, four hundred five thousand, four hundred thirty-one".