252420502 has 4 divisors (see below), whose sum is σ = 378630756. Its totient is φ = 126210250.

The previous prime is 252420473. The next prime is 252420523. The reversal of 252420502 is 205024252.

It is a happy number.

252420502 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×252420502² = 127432219659864008, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63105124 + ... + 63105127.

It is an arithmetic number, because the mean of its divisors is an integer number (94657689).

Almost surely, 2^252420502 is an apocalyptic number.

252420502 is a deficient number, since it is larger than the sum of its proper divisors (126210254).

252420502 is a wasteful number, since it uses less digits than its factorization.

252420502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126210253.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 252420502 is about 15887.7469138956. The cubic root of 252420502 is about 631.9870928171.

Adding to 252420502 its reverse (205024252), we get a palindrome (457444754).

The spelling of 252420502 in words is "two hundred fifty-two million, four hundred twenty thousand, five hundred two".