72524765 has 16 divisors (see below), whose sum is σ = 89164800. Its totient is φ = 56614272.

The previous prime is 72524761. The next prime is 72524797. The reversal of 72524765 is 56742527.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 72524765 - 2² = 72524761 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72524761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34124 + ... + 36186.

It is an arithmetic number, because the mean of its divisors is an integer number (5572800).

Almost surely, 2^72524765 is an apocalyptic number.

It is an amenable number.

72524765 is a deficient number, since it is larger than the sum of its proper divisors (16640035).

72524765 is a wasteful number, since it uses less digits than its factorization.

72524765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2236.

The product of its digits is 117600, while the sum is 38.

The square root of 72524765 is about 8516.1473096700. The cubic root of 72524765 is about 417.0250182913.

The spelling of 72524765 in words is "seventy-two million, five hundred twenty-four thousand, seven hundred sixty-five".