252000215201540 has 24 divisors (see below), whose sum is σ = 569908178994840. Its totient is φ = 93046233305088.

The previous prime is 252000215201467. The next prime is 252000215201557. The reversal of 252000215201540 is 45102512000252.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2645229005056 + 249354986196484 = 1626416^2 + 15790978^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 484615798205 + ... + 484615798724.

It is an arithmetic number, because the mean of its divisors is an integer number (23746174124785).

Almost surely, 2^{252000215201540} is an apocalyptic number.

252000215201540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252000215201540 is an abundant number, since it is smaller than the sum of its proper divisors (317907963793300).

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

252000215201540 is a wasteful number, since it uses less digits than its factorization.

252000215201540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969231596951 (or 969231596949 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

Adding to 252000215201540 its reverse (45102512000252), we get a palindrome (297102727201792).

The spelling of 252000215201540 in words is "two hundred fifty-two trillion, two hundred fifteen million, two hundred one thousand, five hundred forty".