1252451125 has 8 divisors (see below), whose sum is σ = 1563059160. Its totient is φ = 1001960800.

The previous prime is 1252451117. The next prime is 1252451129. The reversal of 1252451125 is 5211542521.

It can be written as a sum of positive squares in 4 ways, for example, as 848241 + 1251602884 = 921^2 + 35378^2 .

It is not a de Polignac number, because 1252451125 - 2³ = 1252451117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1252451093 and 1252451102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252451129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5009680 + ... + 5009929.

It is an arithmetic number, because the mean of its divisors is an integer number (195382395).

Almost surely, 2^1252451125 is an apocalyptic number.

It is an amenable number.

1252451125 is a deficient number, since it is larger than the sum of its proper divisors (310608035).

1252451125 is an equidigital number, since it uses as much as digits as its factorization.

1252451125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10019624 (or 10019614 counting only the distinct ones).

The product of its digits is 4000, while the sum is 28.

The square root of 1252451125 is about 35389.9862249196. The cubic root of 1252451125 is about 1077.9209904540.

Adding to 1252451125 its reverse (5211542521), we get a palindrome (6463993646).

The spelling of 1252451125 in words is "one billion, two hundred fifty-two million, four hundred fifty-one thousand, one hundred twenty-five".