25155427 has 24 divisors (see below), whose sum is σ = 30017232. Its totient is φ = 20889600.

The previous prime is 25155413. The next prime is 25155433. The reversal of 25155427 is 72455152.

It is not a de Polignac number, because 25155427 - 2¹¹ = 25153379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25155437) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 130243 + ... + 130435.

It is an arithmetic number, because the mean of its divisors is an integer number (1250718).

Almost surely, 2^25155427 is an apocalyptic number.

25155427 is a deficient number, since it is larger than the sum of its proper divisors (4861805).

25155427 is a wasteful number, since it uses less digits than its factorization.

25155427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279 (or 262 counting only the distinct ones).

The product of its digits is 14000, while the sum is 31.

The square root of 25155427 is about 5015.5186172519. The cubic root of 25155427 is about 293.0064841099.

The spelling of 25155427 in words is "twenty-five million, one hundred fifty-five thousand, four hundred twenty-seven".