252042531502 has 16 divisors (see below), whose sum is σ = 390271790592. Its totient is φ = 121952192760.

The previous prime is 252042531479. The next prime is 252042531523. The reversal of 252042531502 is 205135240252.

It is a super-3 number, since 3×252042531502³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

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, 3352173 + ... + 3426535.

It is an arithmetic number, because the mean of its divisors is an integer number (24391986912).

Almost surely, 2^252042531502 is an apocalyptic number.

252042531502 is a deficient number, since it is larger than the sum of its proper divisors (138229259090).

252042531502 is a wasteful number, since it uses less digits than its factorization.

252042531502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129063.

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 252042531502 its reverse (205135240252), we get a palindrome (457177771754).

The spelling of 252042531502 in words is "two hundred fifty-two billion, forty-two million, five hundred thirty-one thousand, five hundred two".