25142429 has 8 divisors (see below), whose sum is σ = 27162912. Its totient is φ = 23134320.

The previous prime is 25142413. The next prime is 25142477. The reversal of 25142429 is 92424152.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25142429 - 2⁴ = 25142413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25142489) 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, 1382 + ... + 7224.

It is an arithmetic number, because the mean of its divisors is an integer number (3395364).

Almost surely, 2^25142429 is an apocalyptic number.

It is an amenable number.

25142429 is a deficient number, since it is larger than the sum of its proper divisors (2020483).

25142429 is a wasteful number, since it uses less digits than its factorization.

25142429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6187.

The product of its digits is 5760, while the sum is 29.

The square root of 25142429 is about 5014.2226715614. Note that the first 3 decimals coincide. The cubic root of 25142429 is about 292.9560091908.

The spelling of 25142429 in words is "twenty-five million, one hundred forty-two thousand, four hundred twenty-nine".