22525531545 has 32 divisors (see below), whose sum is σ = 39422807424. Its totient is φ = 10892160000.

The previous prime is 22525531517. The next prime is 22525531591. The reversal of 22525531545 is 54513552522.

It is not a de Polignac number, because 22525531545 - 2⁸ = 22525531289 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121456 + ... + 244545.

It is an arithmetic number, because the mean of its divisors is an integer number (1231962732).

Almost surely, 2^22525531545 is an apocalyptic number.

It is an amenable number.

22525531545 is a deficient number, since it is larger than the sum of its proper divisors (16897275879).

22525531545 is a wasteful number, since it uses less digits than its factorization.

22525531545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366393.

The product of its digits is 300000, while the sum is 39.

The spelling of 22525531545 in words is "twenty-two billion, five hundred twenty-five million, five hundred thirty-one thousand, five hundred forty-five".