253522004 has 6 divisors (see below), whose sum is σ = 443663514. Its totient is φ = 126761000.

The previous prime is 253521991. The next prime is 253522021. The reversal of 253522004 is 400225352.

It can be written as a sum of positive squares in only one way, i.e., 247999504 + 5522500 = 15748^2 + 2350^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31690247 + ... + 31690254.

It is an arithmetic number, because the mean of its divisors is an integer number (73943919).

Almost surely, 2^253522004 is an apocalyptic number.

It is an amenable number.

253522004 is a deficient number, since it is larger than the sum of its proper divisors (190141510).

253522004 is a wasteful number, since it uses less digits than its factorization.

253522004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63380505 (or 63380503 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 253522004 is about 15922.3743204335. The cubic root of 253522004 is about 632.9050384681.

Adding to 253522004 its reverse (400225352), we get a palindrome (653747356).

The spelling of 253522004 in words is "two hundred fifty-three million, five hundred twenty-two thousand, four".