25715748 has 36 divisors (see below), whose sum is σ = 62741168. Its totient is φ = 8197200.

The previous prime is 25715743. The next prime is 25715791. The reversal of 25715748 is 84751752.

It is a super-2 number, since 2×25715748² = 1322599390399008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25715741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4323 + ... + 8373.

Almost surely, 2^25715748 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25715748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31370584).

25715748 is an abundant number, since it is smaller than the sum of its proper divisors (37025420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25715748 is a wasteful number, since it uses less digits than its factorization.

25715748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4104 (or 4079 counting only the distinct ones).

The product of its digits is 78400, while the sum is 39.

The square root of 25715748 is about 5071.0697096372. The cubic root of 25715748 is about 295.1660388660.

The spelling of 25715748 in words is "twenty-five million, seven hundred fifteen thousand, seven hundred forty-eight".