25020723 has 24 divisors (see below), whose sum is σ = 41796048. Its totient is φ = 13196736.

The previous prime is 25020691. The next prime is 25020727. The reversal of 25020723 is 32702052.

It is not a de Polignac number, because 25020723 - 2⁵ = 25020691 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 25020723.

It is not an unprimeable number, because it can be changed into a prime (25020727) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4636 + ... + 8457.

It is an arithmetic number, because the mean of its divisors is an integer number (1741502).

Almost surely, 2^25020723 is an apocalyptic number.

25020723 is a deficient number, since it is larger than the sum of its proper divisors (16775325).

25020723 is a wasteful number, since it uses less digits than its factorization.

25020723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13123 (or 13116 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 25020723 is about 5002.0718707352. The cubic root of 25020723 is about 292.4825440675.

Adding to 25020723 its reverse (32702052), we get a palindrome (57722775).

The spelling of 25020723 in words is "twenty-five million, twenty thousand, seven hundred twenty-three".