245254513 has 4 divisors (see below), whose sum is σ = 280290880. Its totient is φ = 210218148.

The previous prime is 245254511. The next prime is 245254517. The reversal of 245254513 is 315452542.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 245254513 - 2¹ = 245254511 is a prime.

It is a super-2 number, since 2×245254513² = 120299552293734338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245254511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17518173 + ... + 17518186.

It is an arithmetic number, because the mean of its divisors is an integer number (70072720).

Almost surely, 2^245254513 is an apocalyptic number.

It is an amenable number.

245254513 is a deficient number, since it is larger than the sum of its proper divisors (35036367).

245254513 is an equidigital number, since it uses as much as digits as its factorization.

245254513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35036366.

The product of its digits is 24000, while the sum is 31.

The square root of 245254513 is about 15660.6038517038. The cubic root of 245254513 is about 625.9490758386.

It can be divided in two parts, 2452 and 54513, that added together give a palindrome (56965).

The spelling of 245254513 in words is "two hundred forty-five million, two hundred fifty-four thousand, five hundred thirteen".