252775129240 has 64 divisors (see below), whose sum is σ = 573249247200. Its totient is φ = 100311754752.

The previous prime is 252775129231. The next prime is 252775129357. The reversal of 252775129240 is 42921577252.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3059514 + ... + 3141046.

Almost surely, 2^252775129240 is an apocalyptic number.

252775129240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252775129240 is an abundant number, since it is smaller than the sum of its proper divisors (320474117960).

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

252775129240 is a wasteful number, since it uses less digits than its factorization.

252775129240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82156 (or 82152 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 46.

The spelling of 252775129240 in words is "two hundred fifty-two billion, seven hundred seventy-five million, one hundred twenty-nine thousand, two hundred forty".