23051657 has 2 divisors, whose sum is σ = 23051658. Its totient is φ = 23051656.

The previous prime is 23051653. The next prime is 23051659. The reversal of 23051657 is 75615032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22505536 + 546121 = 4744^2 + 739^2 .

It is a cyclic number.

It is not a de Polignac number, because 23051657 - 2² = 23051653 is a prime.

Together with 23051659, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23051653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11525828 + 11525829.

It is an arithmetic number, because the mean of its divisors is an integer number (11525829).

Almost surely, 2^23051657 is an apocalyptic number.

It is an amenable number.

23051657 is a deficient number, since it is larger than the sum of its proper divisors (1).

23051657 is an equidigital number, since it uses as much as digits as its factorization.

23051657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 23051657 is about 4801.2141172833. The cubic root of 23051657 is about 284.5994455103.

Adding to 23051657 its reverse (75615032), we get a palindrome (98666689).

The spelling of 23051657 in words is "twenty-three million, fifty-one thousand, six hundred fifty-seven".