22507349523 has 16 divisors (see below), whose sum is σ = 31485699072. Its totient is φ = 14282820000.

The previous prime is 22507349521. The next prime is 22507349531. The reversal of 22507349523 is 32594370522.

It is a happy number.

It is not a de Polignac number, because 22507349523 - 2¹ = 22507349521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22507349521) 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, 1978053 + ... + 1989398.

It is an arithmetic number, because the mean of its divisors is an integer number (1967856192).

Almost surely, 2^22507349523 is an apocalyptic number.

22507349523 is a deficient number, since it is larger than the sum of its proper divisors (8978349549).

22507349523 is a wasteful number, since it uses less digits than its factorization.

22507349523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3967546.

The product of its (nonzero) digits is 453600, while the sum is 42.

The spelling of 22507349523 in words is "twenty-two billion, five hundred seven million, three hundred forty-nine thousand, five hundred twenty-three".