245072144725 has 6 divisors (see below), whose sum is σ = 303889459490. Its totient is φ = 196057715760.

The previous prime is 245072144699. The next prime is 245072144731. The reversal of 245072144725 is 527441270542.

It can be written as a sum of positive squares in 3 ways, for example, as 14013114129 + 231059030596 = 118377^2 + 480686^2 .

It is not a de Polignac number, because 245072144725 - 2¹¹ = 245072142677 is a prime.

It is a super-2 number, since 2×245072144725² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4901442870 + ... + 4901442919.

Almost surely, 2^245072144725 is an apocalyptic number.

245072144725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

245072144725 is a deficient number, since it is larger than the sum of its proper divisors (58817314765).

245072144725 is an equidigital number, since it uses as much as digits as its factorization.

245072144725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9802885799 (or 9802885794 counting only the distinct ones).

The product of its (nonzero) digits is 627200, while the sum is 43.

The spelling of 245072144725 in words is "two hundred forty-five billion, seventy-two million, one hundred forty-four thousand, seven hundred twenty-five".