23561051 has 2 divisors, whose sum is σ = 23561052. Its totient is φ = 23561050.

The previous prime is 23561047. The next prime is 23561063. The reversal of 23561051 is 15016532.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23561051 - 2² = 23561047 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23561071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11780525 + 11780526.

It is an arithmetic number, because the mean of its divisors is an integer number (11780526).

Almost surely, 2^23561051 is an apocalyptic number.

23561051 is a deficient number, since it is larger than the sum of its proper divisors (1).

23561051 is an equidigital number, since it uses as much as digits as its factorization.

23561051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 23561051 is about 4853.9727028487. The cubic root of 23561051 is about 286.6805439169.

Adding to 23561051 its reverse (15016532), we get a palindrome (38577583).

The spelling of 23561051 in words is "twenty-three million, five hundred sixty-one thousand, fifty-one".