72526705 has 24 divisors (see below), whose sum is σ = 95902272. Its totient is φ = 52547616.

The previous prime is 72526703. The next prime is 72526717. The reversal of 72526705 is 50762527.

It is a happy number.

It is not a de Polignac number, because 72526705 - 2¹ = 72526703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72526703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40642 + ... + 42388.

It is an arithmetic number, because the mean of its divisors is an integer number (3995928).

Almost surely, 2^72526705 is an apocalyptic number.

It is an amenable number.

72526705 is a deficient number, since it is larger than the sum of its proper divisors (23375567).

72526705 is a wasteful number, since it uses less digits than its factorization.

72526705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1813 (or 1794 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 34.

The square root of 72526705 is about 8516.2612101790. The cubic root of 72526705 is about 417.0287366594.

The spelling of 72526705 in words is "seventy-two million, five hundred twenty-six thousand, seven hundred five".