25137948 has 48 divisors (see below), whose sum is σ = 65729664. Its totient is φ = 7410240.

The previous prime is 25137947. The next prime is 25137949. The reversal of 25137948 is 84973152.

It is an interprime number because it is at equal distance from previous prime (25137947) and next prime (25137949).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25137943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2311 + ... + 7457.

It is an arithmetic number, because the mean of its divisors is an integer number (1369368).

Almost surely, 2^25137948 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 25137948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32864832).

25137948 is an abundant number, since it is smaller than the sum of its proper divisors (40591716).

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

25137948 is a wasteful number, since it uses less digits than its factorization.

25137948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5202 (or 5200 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 25137948 is about 5013.7758226710. The cubic root of 25137948 is about 292.9386041650.

The spelling of 25137948 in words is "twenty-five million, one hundred thirty-seven thousand, nine hundred forty-eight".