245547272565 has 48 divisors (see below), whose sum is σ = 486470215296. Its totient is φ = 112238006400.

The previous prime is 245547272563. The next prime is 245547272567. The reversal of 245547272565 is 565272745542.

245547272565 is a `hidden beast` number, since 2 + 4 + 5 + 5 + 4 + 7 + 2 + 72 + 565 = 666.

It is an interprime number because it is at equal distance from previous prime (245547272563) and next prime (245547272567).

It is not a de Polignac number, because 245547272565 - 2¹ = 245547272563 is a prime.

It is a super-2 number, since 2×245547272565² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245547272563) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3280255 + ... + 3354275.

It is an arithmetic number, because the mean of its divisors is an integer number (10134796152).

Almost surely, 2^245547272565 is an apocalyptic number.

It is an amenable number.

245547272565 is a deficient number, since it is larger than the sum of its proper divisors (240922942731).

245547272565 is a wasteful number, since it uses less digits than its factorization.

245547272565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84570 (or 84567 counting only the distinct ones).

The product of its digits is 23520000, while the sum is 54.

The spelling of 245547272565 in words is "two hundred forty-five billion, five hundred forty-seven million, two hundred seventy-two thousand, five hundred sixty-five".