25315948 has 36 divisors (see below), whose sum is σ = 51854040. Its totient is φ = 10782912.

The previous prime is 25315943. The next prime is 25315951. The reversal of 25315948 is 84951352.

It is not an unprimeable number, because it can be changed into a prime (25315943) 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, 44208 + ... + 44776.

It is an arithmetic number, because the mean of its divisors is an integer number (1440390).

Almost surely, 2^25315948 is an apocalyptic number.

25315948 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25315948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25927020).

25315948 is an abundant number, since it is smaller than the sum of its proper divisors (26538092).

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

25315948 is a wasteful number, since it uses less digits than its factorization.

25315948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814 (or 805 counting only the distinct ones).

The product of its digits is 43200, while the sum is 37.

The square root of 25315948 is about 5031.4956027010. The cubic root of 25315948 is about 293.6284042983.

The spelling of 25315948 in words is "twenty-five million, three hundred fifteen thousand, nine hundred forty-eight".