25142169 has 8 divisors (see below), whose sum is σ = 36101632. Its totient is φ = 15472080.

The previous prime is 25142153. The next prime is 25142171. The reversal of 25142169 is 96124152.

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

It is not a de Polignac number, because 25142169 - 2⁴ = 25142153 is a prime.

It is a super-2 number, since 2×25142169² = 1264257324049122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25142189) 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, 322297 + ... + 322374.

It is an arithmetic number, because the mean of its divisors is an integer number (4512704).

Almost surely, 2^25142169 is an apocalyptic number.

It is an amenable number.

25142169 is a deficient number, since it is larger than the sum of its proper divisors (10959463).

25142169 is a wasteful number, since it uses less digits than its factorization.

25142169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644687.

The product of its digits is 4320, while the sum is 30.

The square root of 25142169 is about 5014.1967452425. The cubic root of 25142169 is about 292.9549993596.

The spelling of 25142169 in words is "twenty-five million, one hundred forty-two thousand, one hundred sixty-nine".