25779412 has 48 divisors (see below), whose sum is σ = 50948352. Its totient is φ = 11348480.

The previous prime is 25779407. The next prime is 25779433. The reversal of 25779412 is 21497752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82737 + ... + 83047.

It is an arithmetic number, because the mean of its divisors is an integer number (1061424).

Almost surely, 2^25779412 is an apocalyptic number.

It is an amenable number.

25779412 is a deficient number, since it is larger than the sum of its proper divisors (25168940).

25779412 is a wasteful number, since it uses less digits than its factorization.

25779412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408 (or 406 counting only the distinct ones).

The product of its digits is 35280, while the sum is 37.

The square root of 25779412 is about 5077.3430059432. The cubic root of 25779412 is about 295.4094171619.

The spelling of 25779412 in words is "twenty-five million, seven hundred seventy-nine thousand, four hundred twelve".