253051604 has 24 divisors (see below), whose sum is σ = 480399528. Its totient is φ = 115937280.

The previous prime is 253051583. The next prime is 253051609. The reversal of 253051604 is 406150352.

It can be written as a sum of positive squares in 4 ways, for example, as 46267204 + 206784400 = 6802^2 + 14380^2 .

It is a super-2 number, since 2×253051604² = 128070228573945632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253051609) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 10637 + ... + 24884.

It is an arithmetic number, because the mean of its divisors is an integer number (20016647).

Almost surely, 2^253051604 is an apocalyptic number.

It is an amenable number.

253051604 is a deficient number, since it is larger than the sum of its proper divisors (227347924).

253051604 is a wasteful number, since it uses less digits than its factorization.

253051604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35675 (or 35673 counting only the distinct ones).

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

The square root of 253051604 is about 15907.5957957197. The cubic root of 253051604 is about 632.5133527362.

The spelling of 253051604 in words is "two hundred fifty-three million, fifty-one thousand, six hundred four".