27872425 has 36 divisors (see below), whose sum is σ = 40973196. Its totient is φ = 18748800.

The previous prime is 27872417. The next prime is 27872431. The reversal of 27872425 is 52427872.

It can be written as a sum of positive squares in 6 ways, for example, as 4678569 + 23193856 = 2163^2 + 4816^2 .

It is not a de Polignac number, because 27872425 - 2³ = 27872417 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 74539 + ... + 74911.

Almost surely, 2^27872425 is an apocalyptic number.

27872425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27872425 is a deficient number, since it is larger than the sum of its proper divisors (13100771).

27872425 is a wasteful number, since it uses less digits than its factorization.

27872425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458 (or 446 counting only the distinct ones).

The product of its digits is 62720, while the sum is 37.

The square root of 27872425 is about 5279.4341552860. The cubic root of 27872425 is about 303.1970130390.

The spelling of 27872425 in words is "twenty-seven million, eight hundred seventy-two thousand, four hundred twenty-five".