2499527745 has 72 divisors (see below), whose sum is σ = 5118085440. Its totient is φ = 1118632320.

The previous prime is 2499527651. The next prime is 2499527747. The reversal of 2499527745 is 5477259942.

2499527745 is a `hidden beast` number, since 2 + 49 + 9 + 527 + 74 + 5 = 666.

It is not a de Polignac number, because 2499527745 - 2⁷ = 2499527617 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2499527691 and 2499527700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2499527747) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 68716 + ... + 98594.

It is an arithmetic number, because the mean of its divisors is an integer number (71084520).

Almost surely, 2^2499527745 is an apocalyptic number.

It is an amenable number.

2499527745 is an abundant number, since it is smaller than the sum of its proper divisors (2618557695).

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

2499527745 is a wasteful number, since it uses less digits than its factorization.

2499527745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29927 (or 29911 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 54.

The square root of 2499527745 is about 49995.2772269541. The cubic root of 2499527745 is about 1357.1233430963.

The spelling of 2499527745 in words is "two billion, four hundred ninety-nine million, five hundred twenty-seven thousand, seven hundred forty-five".