72526330 has 8 divisors (see below), whose sum is σ = 130547412. Its totient is φ = 29010528.

The previous prime is 72526309. The next prime is 72526351. The reversal of 72526330 is 3362527.

It is an interprime number because it is at equal distance from previous prime (72526309) and next prime (72526351).

It can be written as a sum of positive squares in 2 ways, for example, as 69605649 + 2920681 = 8343^2 + 1709^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3626307 + ... + 3626326.

Almost surely, 2^72526330 is an apocalyptic number.

72526330 is a deficient number, since it is larger than the sum of its proper divisors (58021082).

72526330 is a wasteful number, since it uses less digits than its factorization.

72526330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7252640.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 72526330 is about 8516.2391934468. The cubic root of 72526330 is about 417.0280179079.

Adding to 72526330 its reverse (3362527), we get a palindrome (75888857).

The spelling of 72526330 in words is "seventy-two million, five hundred twenty-six thousand, three hundred thirty".