25580023 has 16 divisors (see below), whose sum is σ = 31530240. Its totient is φ = 20260800.

The previous prime is 25580021. The next prime is 25580033. The reversal of 25580023 is 32008552.

It is not a de Polignac number, because 25580023 - 2¹ = 25580021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25580023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25580021) 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, 3108 + ... + 7798.

It is an arithmetic number, because the mean of its divisors is an integer number (1970640).

Almost surely, 2^25580023 is an apocalyptic number.

25580023 is a deficient number, since it is larger than the sum of its proper divisors (5950217).

25580023 is a wasteful number, since it uses less digits than its factorization.

25580023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4758.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 25580023 is about 5057.6697203356. The cubic root of 25580023 is about 294.6458375484.

Adding to 25580023 its reverse (32008552), we get a palindrome (57588575).

The spelling of 25580023 in words is "twenty-five million, five hundred eighty thousand, twenty-three".