25142542 has 16 divisors (see below), whose sum is σ = 39461760. Its totient is φ = 11991672.

The previous prime is 25142527. The next prime is 25142543. The reversal of 25142542 is 24524152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25142543) 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, 28033 + ... + 28915.

It is an arithmetic number, because the mean of its divisors is an integer number (2466360).

Almost surely, 2^25142542 is an apocalyptic number.

25142542 is a deficient number, since it is larger than the sum of its proper divisors (14319218).

25142542 is a wasteful number, since it uses less digits than its factorization.

25142542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1527.

The product of its digits is 3200, while the sum is 25.

The square root of 25142542 is about 5014.2339394966. The cubic root of 25142542 is about 292.9564480767.

Adding to 25142542 its reverse (24524152), we get a palindrome (49666694).

The spelling of 25142542 in words is "twenty-five million, one hundred forty-two thousand, five hundred forty-two".