72530325030 has 32 divisors (see below), whose sum is σ = 175796280288. Its totient is φ = 19149920000.

The previous prime is 72530325029. The next prime is 72530325031. The reversal of 72530325030 is 3052303527.

It is an interprime number because it is at equal distance from previous prime (72530325029) and next prime (72530325031).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72530325031) 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 15 ways as a sum of consecutive naturals, for example, 11965671 + ... + 11971730.

It is an arithmetic number, because the mean of its divisors is an integer number (5493633759).

Almost surely, 2^72530325030 is an apocalyptic number.

72530325030 is an abundant number, since it is smaller than the sum of its proper divisors (103265955258).

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

72530325030 is a wasteful number, since it uses less digits than its factorization.

72530325030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23937512.

The product of its (nonzero) digits is 18900, while the sum is 30.

Adding to 72530325030 its reverse (3052303527), we get a palindrome (75582628557).

The spelling of 72530325030 in words is "seventy-two billion, five hundred thirty million, three hundred twenty-five thousand, thirty".