253948869 has 24 divisors (see below), whose sum is σ = 382367232. Its totient is φ = 162228960.

The previous prime is 253948867. The next prime is 253948883. The reversal of 253948869 is 968849352.

253948869 is a `hidden beast` number, since 2 + 539 + 48 + 8 + 69 = 666.

It is not a de Polignac number, because 253948869 - 2¹ = 253948867 is a prime.

It is a super-2 number, since 2×253948869² = 128980056132758322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253948867) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24319 + ... + 33155.

It is an arithmetic number, because the mean of its divisors is an integer number (15931968).

Almost surely, 2^253948869 is an apocalyptic number.

It is an amenable number.

253948869 is a deficient number, since it is larger than the sum of its proper divisors (128418363).

253948869 is a wasteful number, since it uses less digits than its factorization.

253948869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8977 (or 8974 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The square root of 253948869 is about 15935.7732476338. The cubic root of 253948869 is about 633.2600550183.

The spelling of 253948869 in words is "two hundred fifty-three million, nine hundred forty-eight thousand, eight hundred sixty-nine".