253012653 has 20 divisors (see below), whose sum is σ = 381437980. Its totient is φ = 167121792.

The previous prime is 253012637. The next prime is 253012657. The reversal of 253012653 is 356210352.

253012653 is a `hidden beast` number, since 2 + 5 + 3 + 0 + 1 + 2 + 653 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 111450249 + 141562404 = 10557^2 + 11898^2 .

It is not a de Polignac number, because 253012653 - 2⁴ = 253012637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253012657) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5500 + ... + 23157.

It is an arithmetic number, because the mean of its divisors is an integer number (19071899).

Almost surely, 2^253012653 is an apocalyptic number.

It is an amenable number.

253012653 is a deficient number, since it is larger than the sum of its proper divisors (128425327).

253012653 is a wasteful number, since it uses less digits than its factorization.

253012653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28778 (or 28769 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 253012653 is about 15906.3714592612. The cubic root of 253012653 is about 632.4808978384.

The spelling of 253012653 in words is "two hundred fifty-three million, twelve thousand, six hundred fifty-three".