25400352 has 48 divisors (see below), whose sum is σ = 68487552. Its totient is φ = 8236800.

The previous prime is 25400341. The next prime is 25400357. The reversal of 25400352 is 25300452.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (25400357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24 + ... + 7127.

It is an arithmetic number, because the mean of its divisors is an integer number (1426824).

Almost surely, 2^25400352 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 25400352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34243776).

25400352 is an abundant number, since it is smaller than the sum of its proper divisors (43087200).

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

25400352 is a wasteful number, since it uses less digits than its factorization.

25400352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7201 (or 7193 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 25400352 is about 5039.8761889554. The cubic root of 25400352 is about 293.9543637805.

It can be divided in two parts, 25400 and 352, that added together give a palindrome (25752).

The spelling of 25400352 in words is "twenty-five million, four hundred thousand, three hundred fifty-two".