25287923 has 2 divisors, whose sum is σ = 25287924. Its totient is φ = 25287922.

The previous prime is 25287919. The next prime is 25287953. The reversal of 25287923 is 32978252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25287923 - 2² = 25287919 is a prime.

It is not a weakly prime, because it can be changed into another prime (25287953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12643961 + 12643962.

It is an arithmetic number, because the mean of its divisors is an integer number (12643962).

Almost surely, 2^25287923 is an apocalyptic number.

25287923 is a deficient number, since it is larger than the sum of its proper divisors (1).

25287923 is an equidigital number, since it uses as much as digits as its factorization.

25287923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 38.

The square root of 25287923 is about 5028.7098743117. The cubic root of 25287923 is about 293.5200144617.

The spelling of 25287923 in words is "twenty-five million, two hundred eighty-seven thousand, nine hundred twenty-three".