23561057 has 8 divisors (see below), whose sum is σ = 25420584. Its totient is φ = 21708288.

The previous prime is 23561051. The next prime is 23561063. The reversal of 23561057 is 75016532.

It is an interprime number because it is at equal distance from previous prime (23561051) and next prime (23561063).

It can be written as a sum of positive squares in 4 ways, for example, as 96721 + 23464336 = 311^2 + 4844^2 .

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

It is not a de Polignac number, because 23561057 - 2¹⁴ = 23544673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23561051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7403 + ... + 10095.

It is an arithmetic number, because the mean of its divisors is an integer number (3177573).

Almost surely, 2^23561057 is an apocalyptic number.

It is an amenable number.

23561057 is a deficient number, since it is larger than the sum of its proper divisors (1859527).

23561057 is a wasteful number, since it uses less digits than its factorization.

23561057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3379.

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

The square root of 23561057 is about 4853.9733208991. The cubic root of 23561057 is about 286.6805682520.

Adding to 23561057 its reverse (75016532), we get a palindrome (98577589).

The spelling of 23561057 in words is "twenty-three million, five hundred sixty-one thousand, fifty-seven".