25500623 has 4 divisors (see below), whose sum is σ = 25918728. Its totient is φ = 25082520.

The previous prime is 25500617. The next prime is 25500653. The reversal of 25500623 is 32600552.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25500623 - 2¹⁰ = 25499599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25500613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208961 + ... + 209082.

It is an arithmetic number, because the mean of its divisors is an integer number (6479682).

Almost surely, 2^25500623 is an apocalyptic number.

25500623 is a deficient number, since it is larger than the sum of its proper divisors (418105).

25500623 is an equidigital number, since it uses as much as digits as its factorization.

25500623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418104.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 25500623 is about 5049.8141549962. The cubic root of 25500623 is about 294.3406628539.

The spelling of 25500623 in words is "twenty-five million, five hundred thousand, six hundred twenty-three".