25745492 has 12 divisors (see below), whose sum is σ = 45905076. Its totient is φ = 12629760.

The previous prime is 25745479. The next prime is 25745509. The reversal of 25745492 is 29454752.

It can be written as a sum of positive squares in 2 ways, for example, as 18541636 + 7203856 = 4306^2 + 2684^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60509 + ... + 60932.

It is an arithmetic number, because the mean of its divisors is an integer number (3825423).

Almost surely, 2^25745492 is an apocalyptic number.

It is an amenable number.

25745492 is a deficient number, since it is larger than the sum of its proper divisors (20159584).

25745492 is a wasteful number, since it uses less digits than its factorization.

25745492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121498 (or 121496 counting only the distinct ones).

The product of its digits is 100800, while the sum is 38.

The square root of 25745492 is about 5074.0015766651. The cubic root of 25745492 is about 295.2797958259.

The spelling of 25745492 in words is "twenty-five million, seven hundred forty-five thousand, four hundred ninety-two".