1252525252 has 48 divisors (see below), whose sum is σ = 2547623232. Its totient is φ = 532500480.

The previous prime is 1252525243. The next prime is 1252525259. The reversal of 1252525252 is 2525252521.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (1252525259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116788 + ... + 127060.

It is an arithmetic number, because the mean of its divisors is an integer number (53075484).

Almost surely, 2^1252525252 is an apocalyptic number.

It is an amenable number.

1252525252 is an abundant number, since it is smaller than the sum of its proper divisors (1295097980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1252525252 is a wasteful number, since it uses less digits than its factorization.

1252525252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10468 (or 10466 counting only the distinct ones).

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

The square root of 1252525252 is about 35391.0334972010. The cubic root of 1252525252 is about 1077.9422558142.

Adding to 1252525252 its reverse (2525252521), we get a palindrome (3777777773).

The spelling of 1252525252 in words is "one billion, two hundred fifty-two million, five hundred twenty-five thousand, two hundred fifty-two".