253553604 has 12 divisors (see below), whose sum is σ = 591625104. Its totient is φ = 84517864.

The previous prime is 253553603. The next prime is 253553611. The reversal of 253553604 is 406355352.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (253553603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10564722 + ... + 10564745.

It is an arithmetic number, because the mean of its divisors is an integer number (49302092).

Almost surely, 2^253553604 is an apocalyptic number.

It is an amenable number.

253553604 is an abundant number, since it is smaller than the sum of its proper divisors (338071500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253553604 is a wasteful number, since it uses less digits than its factorization.

253553604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21129474 (or 21129472 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 33.

The square root of 253553604 is about 15923.3666038310. The cubic root of 253553604 is about 632.9313333170.

The spelling of 253553604 in words is "two hundred fifty-three million, five hundred fifty-three thousand, six hundred four".