25090542 has 12 divisors (see below), whose sum is σ = 54362880. Its totient is φ = 8363508.

The previous prime is 25090519. The next prime is 25090553. The reversal of 25090542 is 24509052.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 696942 + ... + 696977.

It is an arithmetic number, because the mean of its divisors is an integer number (4530240).

Almost surely, 2^25090542 is an apocalyptic number.

25090542 is an abundant number, since it is smaller than the sum of its proper divisors (29272338).

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

25090542 is a wasteful number, since it uses less digits than its factorization.

25090542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393927 (or 1393924 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 25090542 is about 5009.0460169577. The cubic root of 25090542 is about 292.7543437501.

Adding to 25090542 its reverse (24509052), we get a palindrome (49599594).

It can be divided in two parts, 2509054 and 2, that added together give a square (2509056 = 1584²).

The spelling of 25090542 in words is "twenty-five million, ninety thousand, five hundred forty-two".