1253802895 has 4 divisors (see below), whose sum is σ = 1504563480. Its totient is φ = 1003042312.

The previous prime is 1253802881. The next prime is 1253802899. The reversal of 1253802895 is 5982083521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1253802895 - 2⁵ = 1253802863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253802899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125380285 + ... + 125380294.

It is an arithmetic number, because the mean of its divisors is an integer number (376140870).

Almost surely, 2^1253802895 is an apocalyptic number.

1253802895 is a deficient number, since it is larger than the sum of its proper divisors (250760585).

1253802895 is an equidigital number, since it uses as much as digits as its factorization.

1253802895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250760584.

The product of its (nonzero) digits is 172800, while the sum is 43.

The square root of 1253802895 is about 35409.0792735423. The cubic root of 1253802895 is about 1078.3086509186.

The spelling of 1253802895 in words is "one billion, two hundred fifty-three million, eight hundred two thousand, eight hundred ninety-five".