252121401460 has 24 divisors (see below), whose sum is σ = 534403124640. Its totient is φ = 99906049824.

The previous prime is 252121401419. The next prime is 252121401461. The reversal of 252121401460 is 64104121252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252121401461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58904730 + ... + 58909009.

It is an arithmetic number, because the mean of its divisors is an integer number (22266796860).

Almost surely, 2^252121401460 is an apocalyptic number.

252121401460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252121401460 is an abundant number, since it is smaller than the sum of its proper divisors (282281723180).

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

252121401460 is a wasteful number, since it uses less digits than its factorization.

252121401460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117813855 (or 117813853 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The spelling of 252121401460 in words is "two hundred fifty-two billion, one hundred twenty-one million, four hundred one thousand, four hundred sixty".