25500923 has 6 divisors (see below), whose sum is σ = 29664396. Its totient is φ = 21857892.

The previous prime is 25500919. The next prime is 25500929. The reversal of 25500923 is 32900552.

It is not a de Polignac number, because 25500923 - 2² = 25500919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25500892 and 25500901.

It is not an unprimeable number, because it can be changed into a prime (25500929) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 260165 + ... + 260262.

It is an arithmetic number, because the mean of its divisors is an integer number (4944066).

Almost surely, 2^25500923 is an apocalyptic number.

25500923 is a deficient number, since it is larger than the sum of its proper divisors (4163473).

25500923 is an equidigital number, since it uses as much as digits as its factorization.

25500923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520441 (or 520434 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 25500923 is about 5049.8438589723. The cubic root of 25500923 is about 294.3418170983.

The spelling of 25500923 in words is "twenty-five million, five hundred thousand, nine hundred twenty-three".