252540542 has 8 divisors (see below), whose sum is σ = 401093856. Its totient is φ = 118842592.

The previous prime is 252540517. The next prime is 252540557. The reversal of 252540542 is 245045252.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 3713798 + ... + 3713865.

It is an arithmetic number, because the mean of its divisors is an integer number (50136732).

Almost surely, 2^252540542 is an apocalyptic number.

252540542 is a deficient number, since it is larger than the sum of its proper divisors (148553314).

252540542 is a wasteful number, since it uses less digits than its factorization.

252540542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7427682.

The product of its (nonzero) digits is 16000, while the sum is 29.

The square root of 252540542 is about 15891.5242189036. The cubic root of 252540542 is about 632.0872586216.

Adding to 252540542 its reverse (245045252), we get a palindrome (497585794).

The spelling of 252540542 in words is "two hundred fifty-two million, five hundred forty thousand, five hundred forty-two".