245312553 has 32 divisors (see below), whose sum is σ = 362355840. Its totient is φ = 147018240.

The previous prime is 245312531. The next prime is 245312563. The reversal of 245312553 is 355213542.

It is not a de Polignac number, because 245312553 - 2⁵ = 245312521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 245312553.

It is not an unprimeable number, because it can be changed into a prime (245312563) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85051 + ... + 87887.

It is an arithmetic number, because the mean of its divisors is an integer number (11323620).

Almost surely, 2^245312553 is an apocalyptic number.

It is an amenable number.

245312553 is a deficient number, since it is larger than the sum of its proper divisors (117043287).

245312553 is a wasteful number, since it uses less digits than its factorization.

245312553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2937.

The product of its digits is 18000, while the sum is 30.

The square root of 245312553 is about 15662.4567996212. The cubic root of 245312553 is about 625.9984493356.

The spelling of 245312553 in words is "two hundred forty-five million, three hundred twelve thousand, five hundred fifty-three".