1252540300 has 36 divisors (see below), whose sum is σ = 2965107096. Its totient is φ = 455468800.

The previous prime is 1252540291. The next prime is 1252540309. The reversal of 1252540300 is 30452521.

It is an interprime number because it is at equal distance from previous prime (1252540291) and next prime (1252540309).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (1252540309) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 568237 + ... + 570436.

It is an arithmetic number, because the mean of its divisors is an integer number (82364086).

Almost surely, 2^1252540300 is an apocalyptic number.

1252540300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1252540300 is an abundant number, since it is smaller than the sum of its proper divisors (1712566796).

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

1252540300 is a wasteful number, since it uses less digits than its factorization.

1252540300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138698 (or 1138691 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 1252540300 is about 35391.2460927840. The cubic root of 1252540300 is about 1077.9465726427.

Adding to 1252540300 its reverse (30452521), we get a palindrome (1282992821).

It can be divided in two parts, 12525 and 40300, that added together give a palindrome (52825).

The spelling of 1252540300 in words is "one billion, two hundred fifty-two million, five hundred forty thousand, three hundred".