247272835725 has 96 divisors (see below), whose sum is σ = 506284560000. Its totient is φ = 117588464640.

The previous prime is 247272835699. The next prime is 247272835727. The reversal of 247272835725 is 527538272742.

It is a happy number.

247272835725 is a `hidden beast` number, since 2 + 47 + 2 + 7 + 28 + 3 + 572 + 5 = 666.

It is not a de Polignac number, because 247272835725 - 2⁹ = 247272835213 is a prime.

It is a super-2 number, since 2×247272835725² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247272835727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 349050 + ... + 785099.

It is an arithmetic number, because the mean of its divisors is an integer number (5273797500).

Almost surely, 2^247272835725 is an apocalyptic number.

247272835725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

247272835725 is an abundant number, since it is smaller than the sum of its proper divisors (259011724275).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

247272835725 is a wasteful number, since it uses less digits than its factorization.

247272835725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134204 (or 1134193 counting only the distinct ones).

The product of its digits is 13171200, while the sum is 54.

The spelling of 247272835725 in words is "two hundred forty-seven billion, two hundred seventy-two million, eight hundred thirty-five thousand, seven hundred twenty-five".