253197553 has 36 divisors (see below), whose sum is σ = 321493680. Its totient is φ = 198268560.

The previous prime is 253197499. The next prime is 253197557. The reversal of 253197553 is 355791352.

It is not a de Polignac number, because 253197553 - 2¹³ = 253189361 is a prime.

Its product of digits (141750) is a multiple of the sum of its prime factors (378).

It is not an unprimeable number, because it can be changed into a prime (253197557) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 894550 + ... + 894832.

It is an arithmetic number, because the mean of its divisors is an integer number (8930380).

Almost surely, 2^253197553 is an apocalyptic number.

It is an amenable number.

253197553 is a deficient number, since it is larger than the sum of its proper divisors (68296127).

253197553 is a wasteful number, since it uses less digits than its factorization.

253197553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378 (or 340 counting only the distinct ones).

The product of its digits is 141750, while the sum is 40.

The square root of 253197553 is about 15912.1825341466. The cubic root of 253197553 is about 632.6349312968.

The spelling of 253197553 in words is "two hundred fifty-three million, one hundred ninety-seven thousand, five hundred fifty-three".