1252253330 has 16 divisors (see below), whose sum is σ = 2372690880. Its totient is φ = 474538032.

The previous prime is 1252253293. The next prime is 1252253357. The reversal of 1252253330 is 333522521.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1252253330.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3295214 + ... + 3295593.

It is an arithmetic number, because the mean of its divisors is an integer number (148293180).

Almost surely, 2^1252253330 is an apocalyptic number.

1252253330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1252253330 is a deficient number, since it is larger than the sum of its proper divisors (1120437550).

1252253330 is a wasteful number, since it uses less digits than its factorization.

1252253330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6590833.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 1252253330 is about 35387.1916093945. The cubic root of 1252253330 is about 1077.8642434340.

Adding to 1252253330 its reverse (333522521), we get a palindrome (1585775851).

The spelling of 1252253330 in words is "one billion, two hundred fifty-two million, two hundred fifty-three thousand, three hundred thirty".