25113642 has 32 divisors (see below), whose sum is σ = 51287040. Its totient is φ = 8196720.

The previous prime is 25113629. The next prime is 25113653. The reversal of 25113642 is 24631152.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104959 + ... + 105197.

It is an arithmetic number, because the mean of its divisors is an integer number (1602720).

Almost surely, 2^25113642 is an apocalyptic number.

25113642 is an abundant number, since it is smaller than the sum of its proper divisors (26173398).

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

25113642 is a wasteful number, since it uses less digits than its factorization.

25113642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538.

The product of its digits is 1440, while the sum is 24.

The square root of 25113642 is about 5011.3513147653. The cubic root of 25113642 is about 292.8441591479.

Adding to 25113642 its reverse (24631152), we get a palindrome (49744794).

The spelling of 25113642 in words is "twenty-five million, one hundred thirteen thousand, six hundred forty-two".