25279748 has 24 divisors (see below), whose sum is σ = 50446872. Its totient is φ = 10980864.

The previous prime is 25279741. The next prime is 25279757. The reversal of 25279748 is 84797252.

It can be written as a sum of positive squares in 4 ways, for example, as 10549504 + 14730244 = 3248^2 + 3838^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25279699 and 25279708.

It is not an unprimeable number, because it can be changed into a prime (25279741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13415 + ... + 15182.

It is an arithmetic number, because the mean of its divisors is an integer number (2101953).

Almost surely, 2^25279748 is an apocalyptic number.

It is an amenable number.

25279748 is a deficient number, since it is larger than the sum of its proper divisors (25167124).

25279748 is a wasteful number, since it uses less digits than its factorization.

25279748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28631 (or 28629 counting only the distinct ones).

The product of its digits is 282240, while the sum is 44.

The square root of 25279748 is about 5027.8969758737. The cubic root of 25279748 is about 293.4883816445.

The spelling of 25279748 in words is "twenty-five million, two hundred seventy-nine thousand, seven hundred forty-eight".