25181052 has 96 divisors (see below), whose sum is σ = 67436544. Its totient is φ = 7257600.

The previous prime is 25181047. The next prime is 25181081. The reversal of 25181052 is 25018152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 198213 + ... + 198339.

It is an arithmetic number, because the mean of its divisors is an integer number (702464).

Almost surely, 2^25181052 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 25181052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33718272).

25181052 is an abundant number, since it is smaller than the sum of its proper divisors (42255492).

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

25181052 is a wasteful number, since it uses less digits than its factorization.

25181052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 25181052 is about 5018.0725383358. The cubic root of 25181052 is about 293.1059423449.

It can be divided in two parts, 2518 and 1052, that added together give a triangular number (3570 = T₈₄).

The spelling of 25181052 in words is "twenty-five million, one hundred eighty-one thousand, fifty-two".