245442147625 has 8 divisors (see below), whose sum is σ = 306311800392. Its totient is φ = 196353718000.

The previous prime is 245442147589. The next prime is 245442147631. The reversal of 245442147625 is 526741244542.

It can be written as a sum of positive squares in 4 ways, for example, as 57821492521 + 187620655104 = 240461^2 + 433152^2 .

It is not a de Polignac number, because 245442147625 - 2¹⁷ = 245442016553 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 981768466 + ... + 981768715.

It is an arithmetic number, because the mean of its divisors is an integer number (38288975049).

Almost surely, 2^245442147625 is an apocalyptic number.

245442147625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

245442147625 is a deficient number, since it is larger than the sum of its proper divisors (60869652767).

245442147625 is an equidigital number, since it uses as much as digits as its factorization.

245442147625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963537196 (or 1963537186 counting only the distinct ones).

The product of its digits is 2150400, while the sum is 46.

The spelling of 245442147625 in words is "two hundred forty-five billion, four hundred forty-two million, one hundred forty-seven thousand, six hundred twenty-five".