253501604 has 12 divisors (see below), whose sum is σ = 450900828. Its totient is φ = 124672800.

The previous prime is 253501537. The next prime is 253501609. The reversal of 253501604 is 406105352.

It can be written as a sum of positive squares in 2 ways, for example, as 73136704 + 180364900 = 8552^2 + 13430^2 .

It is not an unprimeable number, because it can be changed into a prime (253501609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 519227 + ... + 519714.

It is an arithmetic number, because the mean of its divisors is an integer number (37575069).

Almost surely, 2^253501604 is an apocalyptic number.

It is an amenable number.

253501604 is a deficient number, since it is larger than the sum of its proper divisors (197399224).

253501604 is a wasteful number, since it uses less digits than its factorization.

253501604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039006 (or 1039004 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 253501604 is about 15921.7336995693. The cubic root of 253501604 is about 632.8880621519. Note that the first 3 decimals are identical.

Adding to 253501604 its reverse (406105352), we get a palindrome (659606956).

The spelling of 253501604 in words is "two hundred fifty-three million, five hundred one thousand, six hundred four".