25055651 has 2 divisors, whose sum is σ = 25055652. Its totient is φ = 25055650.

The previous prime is 25055647. The next prime is 25055659. The reversal of 25055651 is 15655052.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25055651 - 2² = 25055647 is a prime.

It is not a weakly prime, because it can be changed into another prime (25055659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12527825 + 12527826.

It is an arithmetic number, because the mean of its divisors is an integer number (12527826).

Almost surely, 2^25055651 is an apocalyptic number.

25055651 is a deficient number, since it is larger than the sum of its proper divisors (1).

25055651 is an equidigital number, since it uses as much as digits as its factorization.

25055651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 25055651 is about 5005.5620064085. The cubic root of 25055651 is about 292.6185790433.

The spelling of 25055651 in words is "twenty-five million, fifty-five thousand, six hundred fifty-one".