25629142 has 32 divisors (see below), whose sum is σ = 48271104. Its totient is φ = 9914400.

The previous prime is 25629137. The next prime is 25629143. The reversal of 25629142 is 24192652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25629143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24592 + ... + 25612.

It is an arithmetic number, because the mean of its divisors is an integer number (1508472).

Almost surely, 2^25629142 is an apocalyptic number.

25629142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

25629142 is a deficient number, since it is larger than the sum of its proper divisors (22641962).

25629142 is a wasteful number, since it uses less digits than its factorization.

25629142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1204.

The product of its digits is 8640, while the sum is 31.

The square root of 25629142 is about 5062.5232838971. The cubic root of 25629142 is about 294.8343108637.

The spelling of 25629142 in words is "twenty-five million, six hundred twenty-nine thousand, one hundred forty-two".