22502657157 has 4 divisors (see below), whose sum is σ = 30003542880. Its totient is φ = 15001771436.

The previous prime is 22502657141. The next prime is 22502657173. The reversal of 22502657157 is 75175620522.

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 an interprime number because it is at equal distance from previous prime (22502657141) and next prime (22502657173).

It is a cyclic number.

It is not a de Polignac number, because 22502657157 - 2⁴ = 22502657141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22502657117) 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, 3750442857 + ... + 3750442862.

It is an arithmetic number, because the mean of its divisors is an integer number (7500885720).

Almost surely, 2^22502657157 is an apocalyptic number.

It is an amenable number.

22502657157 is a deficient number, since it is larger than the sum of its proper divisors (7500885723).

22502657157 is an equidigital number, since it uses as much as digits as its factorization.

22502657157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7500885722.

The product of its (nonzero) digits is 294000, while the sum is 42.

The spelling of 22502657157 in words is "twenty-two billion, five hundred two million, six hundred fifty-seven thousand, one hundred fifty-seven".