1252770225 has 48 divisors (see below), whose sum is σ = 2491745280. Its totient is φ = 542548800.

The previous prime is 1252770223. The next prime is 1252770247. The reversal of 1252770225 is 5220772521.

It is not a de Polignac number, because 1252770225 - 2¹ = 1252770223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1252770223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52821 + ... + 72770.

It is an arithmetic number, because the mean of its divisors is an integer number (51911360).

Almost surely, 2^1252770225 is an apocalyptic number.

1252770225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1252770225 is a deficient number, since it is larger than the sum of its proper divisors (1238975055).

1252770225 is a wasteful number, since it uses less digits than its factorization.

1252770225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125630 (or 125625 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 33.

The square root of 1252770225 is about 35394.4942752400. The cubic root of 1252770225 is about 1078.0125270613.

The spelling of 1252770225 in words is "one billion, two hundred fifty-two million, seven hundred seventy thousand, two hundred twenty-five".