253563705 has 12 divisors (see below), whose sum is σ = 439510500. Its totient is φ = 135233952.

The previous prime is 253563697. The next prime is 253563719. The reversal of 253563705 is 507365352.

253563705 is a `hidden beast` number, since 25 + 3 + 563 + 70 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 25674489 + 227889216 = 5067^2 + 15096^2 .

It is not a de Polignac number, because 253563705 - 2³ = 253563697 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 253563705.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2817330 + ... + 2817419.

It is an arithmetic number, because the mean of its divisors is an integer number (36625875).

Almost surely, 2^253563705 is an apocalyptic number.

It is an amenable number.

253563705 is a deficient number, since it is larger than the sum of its proper divisors (185946795).

253563705 is a wasteful number, since it uses less digits than its factorization.

253563705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5634760 (or 5634757 counting only the distinct ones).

The product of its (nonzero) digits is 94500, while the sum is 36.

The square root of 253563705 is about 15923.6837760614. The cubic root of 253563705 is about 632.9397380545.

The spelling of 253563705 in words is "two hundred fifty-three million, five hundred sixty-three thousand, seven hundred five".