252016540 has 12 divisors (see below), whose sum is σ = 529234776. Its totient is φ = 100806608.

The previous prime is 252016529. The next prime is 252016579. The reversal of 252016540 is 45610252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6300394 + ... + 6300433.

It is an arithmetic number, because the mean of its divisors is an integer number (44102898).

Almost surely, 2^252016540 is an apocalyptic number.

252016540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252016540 is an abundant number, since it is smaller than the sum of its proper divisors (277218236).

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

252016540 is a wasteful number, since it uses less digits than its factorization.

252016540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12600836 (or 12600834 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 252016540 is about 15875.0288188715. The cubic root of 252016540 is about 631.6497785887.

Adding to 252016540 its reverse (45610252), we get a palindrome (297626792).

The spelling of 252016540 in words is "two hundred fifty-two million, sixteen thousand, five hundred forty".