1252540255 has 32 divisors (see below), whose sum is σ = 1564168320. Its totient is φ = 962357760.

The previous prime is 1252540231. The next prime is 1252540273. The reversal of 1252540255 is 5520452521.

It is a happy number.

It is not a de Polignac number, because 1252540255 - 2²⁹ = 715669343 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2974945 + ... + 2975365.

It is an arithmetic number, because the mean of its divisors is an integer number (48880260).

Almost surely, 2^1252540255 is an apocalyptic number.

1252540255 is a deficient number, since it is larger than the sum of its proper divisors (311628065).

1252540255 is a wasteful number, since it uses less digits than its factorization.

1252540255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691.

The product of its (nonzero) digits is 20000, while the sum is 31.

The square root of 1252540255 is about 35391.2454570336. The cubic root of 1252540255 is about 1077.9465597336.

Adding to 1252540255 its reverse (5520452521), we get a palindrome (6772992776).

The spelling of 1252540255 in words is "one billion, two hundred fifty-two million, five hundred forty thousand, two hundred fifty-five".