253011553 has 16 divisors (see below), whose sum is σ = 267079680. Its totient is φ = 239374800.

The previous prime is 253011547. The next prime is 253011571. The reversal of 253011553 is 355110352.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253011553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253011593) 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 15 ways as a sum of consecutive naturals, for example, 305526 + ... + 306352.

It is an arithmetic number, because the mean of its divisors is an integer number (16692480).

Almost surely, 2^253011553 is an apocalyptic number.

It is an amenable number.

253011553 is a deficient number, since it is larger than the sum of its proper divisors (14068127).

253011553 is a wasteful number, since it uses less digits than its factorization.

253011553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 253011553 is about 15906.3368818845. The cubic root of 253011553 is about 632.4799812440.

The spelling of 253011553 in words is "two hundred fifty-three million, eleven thousand, five hundred fifty-three".