25745823 has 32 divisors (see below), whose sum is σ = 39916800. Its totient is φ = 16380000.

The previous prime is 25745791. The next prime is 25745833. The reversal of 25745823 is 32854752.

25745823 is a `hidden beast` number, since 2 + 5 + 74 + 582 + 3 = 666.

It is not a de Polignac number, because 25745823 - 2⁵ = 25745791 is a prime.

Its product of digits (67200) is a multiple of the sum of its prime factors (420).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25745833) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102448 + ... + 102698.

It is an arithmetic number, because the mean of its divisors is an integer number (1247400).

Almost surely, 2^25745823 is an apocalyptic number.

25745823 is a deficient number, since it is larger than the sum of its proper divisors (14170977).

25745823 is a wasteful number, since it uses less digits than its factorization.

25745823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420 (or 414 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 25745823 is about 5074.0341938146. The cubic root of 25745823 is about 295.2810612538.

The spelling of 25745823 in words is "twenty-five million, seven hundred forty-five thousand, eight hundred twenty-three".