1252451225 has 6 divisors (see below), whose sum is σ = 1553039550. Its totient is φ = 1001960960.

The previous prime is 1252451219. The next prime is 1252451261. The reversal of 1252451225 is 5221542521.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 289714441 + 962736784 = 17021^2 + 31028^2 .

It is not a de Polignac number, because 1252451225 - 2⁴ = 1252451209 is a prime.

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, 25049000 + ... + 25049049.

It is an arithmetic number, because the mean of its divisors is an integer number (258839925).

Almost surely, 2^1252451225 is an apocalyptic number.

It is an amenable number.

1252451225 is a deficient number, since it is larger than the sum of its proper divisors (300588325).

1252451225 is an equidigital number, since it uses as much as digits as its factorization.

1252451225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50098059 (or 50098054 counting only the distinct ones).

The product of its digits is 8000, while the sum is 29.

The square root of 1252451225 is about 35389.9876377486. The cubic root of 1252451225 is about 1077.9210191423.

Adding to 1252451225 its reverse (5221542521), we get a palindrome (6473993746).

It can be divided in two parts, 12524512 and 25, that multiplied together give a triangular number (313112800 = T₂₅₀₂₄).

The spelling of 1252451225 in words is "one billion, two hundred fifty-two million, four hundred fifty-one thousand, two hundred twenty-five".