253520704 has 14 divisors (see below), whose sum is σ = 503080274. Its totient is φ = 126760320.

The previous prime is 253520693. The next prime is 253520713. The reversal of 253520704 is 407025352.

It can be written as a sum of positive squares in only one way, i.e., 142850304 + 110670400 = 11952^2 + 10520^2 .

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, 1980567 + ... + 1980694.

Almost surely, 2^253520704 is an apocalyptic number.

It is an amenable number.

253520704 is a deficient number, since it is larger than the sum of its proper divisors (249559570).

253520704 is an equidigital number, since it uses as much as digits as its factorization.

253520704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3961273 (or 3961263 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 253520704 is about 15922.3334973238. Note that the first 3 decimals coincide. The cubic root of 253520704 is about 632.9039566712.

The spelling of 253520704 in words is "two hundred fifty-three million, five hundred twenty thousand, seven hundred four".