23056457 has 4 divisors (see below), whose sum is σ = 23068356. Its totient is φ = 23044560.

The previous prime is 23056441. The next prime is 23056459. The reversal of 23056457 is 75465032.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 19855936 + 3200521 = 4456^2 + 1789^2 .

It is a cyclic number.

It is not a de Polignac number, because 23056457 - 2⁴ = 23056441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23056459) 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 3 ways as a sum of consecutive naturals, for example, 2294 + ... + 7167.

It is an arithmetic number, because the mean of its divisors is an integer number (5767089).

Almost surely, 2^23056457 is an apocalyptic number.

It is an amenable number.

23056457 is a deficient number, since it is larger than the sum of its proper divisors (11899).

23056457 is an equidigital number, since it uses as much as digits as its factorization.

23056457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11898.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 23056457 is about 4801.7139648255. The cubic root of 23056457 is about 284.6191979954.

The spelling of 23056457 in words is "twenty-three million, fifty-six thousand, four hundred fifty-seven".