22752457 has 8 divisors (see below), whose sum is σ = 28003136. Its totient is φ = 18001872.

The previous prime is 22752427. The next prime is 22752469. The reversal of 22752457 is 75425722.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22752457 - 2¹⁹ = 22228169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22752427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124923 + ... + 125104.

It is an arithmetic number, because the mean of its divisors is an integer number (3500392).

Almost surely, 2^22752457 is an apocalyptic number.

It is an amenable number.

22752457 is a deficient number, since it is larger than the sum of its proper divisors (5250679).

22752457 is a wasteful number, since it uses less digits than its factorization.

22752457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250047.

The product of its digits is 39200, while the sum is 34.

The square root of 22752457 is about 4769.9535637153. The cubic root of 22752457 is about 283.3627557296.

The spelling of 22752457 in words is "twenty-two million, seven hundred fifty-two thousand, four hundred fifty-seven".