22542501 has 4 divisors (see below), whose sum is σ = 30056672. Its totient is φ = 15028332.

The previous prime is 22542479. The next prime is 22542539. The reversal of 22542501 is 10524522.

It is a happy number.

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 not a de Polignac number, because 22542501 - 2⁹ = 22541989 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 (22542581) 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, 3757081 + ... + 3757086.

It is an arithmetic number, because the mean of its divisors is an integer number (7514168).

Almost surely, 2^22542501 is an apocalyptic number.

It is an amenable number.

22542501 is a deficient number, since it is larger than the sum of its proper divisors (7514171).

22542501 is an equidigital number, since it uses as much as digits as its factorization.

22542501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7514170.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 22542501 is about 4747.8943754047. The cubic root of 22542501 is about 282.4884522912.

The spelling of 22542501 in words is "twenty-two million, five hundred forty-two thousand, five hundred one".