25399352 has 48 divisors (see below), whose sum is σ = 55141800. Its totient is φ = 10929600.

The previous prime is 25399313. The next prime is 25399357.

25399352 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25399357) 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, 17702 + ... + 19082.

Almost surely, 2^25399352 is an apocalyptic number.

25399352 is a gapful number since it is divisible by the number (22) 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 25399352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27570900).

25399352 is an abundant number, since it is smaller than the sum of its proper divisors (29742448).

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

25399352 is a wasteful number, since it uses less digits than its factorization.

25399352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428 (or 1413 counting only the distinct ones).

The product of its digits is 72900, while the sum is 38.

The square root of 25399352 is about 5039.7769791926. The cubic root of 25399352 is about 293.9505061145.

The spelling of 25399352 in words is "twenty-five million, three hundred ninety-nine thousand, three hundred fifty-two".