253520975 has 6 divisors (see below), whose sum is σ = 314366040. Its totient is φ = 202816760.

The previous prime is 253520963. The next prime is 253520977. The reversal of 253520975 is 579025352.

It is a de Polignac number, because none of the positive numbers 2^k-253520975 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253520977) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5070395 + ... + 5070444.

It is an arithmetic number, because the mean of its divisors is an integer number (52394340).

Almost surely, 2^253520975 is an apocalyptic number.

253520975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

253520975 is a deficient number, since it is larger than the sum of its proper divisors (60845065).

253520975 is a wasteful number, since it uses less digits than its factorization.

253520975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10140849 (or 10140844 counting only the distinct ones).

The product of its (nonzero) digits is 94500, while the sum is 38.

The square root of 253520975 is about 15922.3420073807. The cubic root of 253520975 is about 632.9041821846.

The spelling of 253520975 in words is "two hundred fifty-three million, five hundred twenty thousand, nine hundred seventy-five".