252443542 has 8 divisors (see below), whose sum is σ = 407793456. Its totient is φ = 116512392.

The previous prime is 252443531. The next prime is 252443551. The reversal of 252443542 is 245344252.

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, 4854658 + ... + 4854709.

It is an arithmetic number, because the mean of its divisors is an integer number (50974182).

Almost surely, 2^252443542 is an apocalyptic number.

252443542 is a deficient number, since it is larger than the sum of its proper divisors (155349914).

252443542 is a wasteful number, since it uses less digits than its factorization.

252443542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9709382.

The product of its digits is 38400, while the sum is 31.

The square root of 252443542 is about 15888.4719844295. The cubic root of 252443542 is about 632.0063207054.

Adding to 252443542 its reverse (245344252), we get a palindrome (497787794).

The spelling of 252443542 in words is "two hundred fifty-two million, four hundred forty-three thousand, five hundred forty-two".