25670523 has 16 divisors (see below), whose sum is σ = 34909056. Its totient is φ = 16776000.

The previous prime is 25670509. The next prime is 25670531. The reversal of 25670523 is 32507652.

It is not a de Polignac number, because 25670523 - 2¹⁰ = 25669499 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (25670503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54736 + ... + 55202.

It is an arithmetic number, because the mean of its divisors is an integer number (2181816).

Almost surely, 2^25670523 is an apocalyptic number.

25670523 is a deficient number, since it is larger than the sum of its proper divisors (9238533).

25670523 is a wasteful number, since it uses less digits than its factorization.

25670523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794.

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 25670523 is about 5066.6086290536. The cubic root of 25670523 is about 294.9929060824.

The spelling of 25670523 in words is "twenty-five million, six hundred seventy thousand, five hundred twenty-three".