24775225 has 6 divisors (see below), whose sum is σ = 30721310. Its totient is φ = 19820160.

The previous prime is 24775213. The next prime is 24775241. The reversal of 24775225 is 52257742.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 4227136 + 20548089 = 2056^2 + 4533^2 .

It is not a de Polignac number, because 24775225 - 2⁷ = 24775097 is a prime.

It is a super-2 number, since 2×24775225² = 1227623547601250, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 495480 + ... + 495529.

Almost surely, 2^24775225 is an apocalyptic number.

24775225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

24775225 is a deficient number, since it is larger than the sum of its proper divisors (5946085).

24775225 is an equidigital number, since it uses as much as digits as its factorization.

24775225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991019 (or 991014 counting only the distinct ones).

The product of its digits is 39200, while the sum is 34.

The square root of 24775225 is about 4977.4717477852. The cubic root of 24775225 is about 291.5228061520.

The spelling of 24775225 in words is "twenty-four million, seven hundred seventy-five thousand, two hundred twenty-five".