23373557 has 2 divisors, whose sum is σ = 23373558. Its totient is φ = 23373556.

The previous prime is 23373551. The next prime is 23373569. The reversal of 23373557 is 75537332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13476241 + 9897316 = 3671^2 + 3146^2 .

It is a cyclic number.

It is not a de Polignac number, because 23373557 - 2⁴ = 23373541 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23373551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11686778 + 11686779.

It is an arithmetic number, because the mean of its divisors is an integer number (11686779).

Almost surely, 2^23373557 is an apocalyptic number.

It is an amenable number.

23373557 is a deficient number, since it is larger than the sum of its proper divisors (1).

23373557 is an equidigital number, since it uses as much as digits as its factorization.

23373557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 66150, while the sum is 35.

The square root of 23373557 is about 4834.6206676429. The cubic root of 23373557 is about 285.9180695109.

The spelling of 23373557 in words is "twenty-three million, three hundred seventy-three thousand, five hundred fifty-seven".