72025518 has 16 divisors (see below), whose sum is σ = 144656640. Its totient is φ = 23907576.

The previous prime is 72025517. The next prime is 72025529. The reversal of 72025518 is 81552027.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72025517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23680 + ... + 26547.

It is an arithmetic number, because the mean of its divisors is an integer number (9041040).

Almost surely, 2^72025518 is an apocalyptic number.

72025518 is an abundant number, since it is smaller than the sum of its proper divisors (72631122).

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

72025518 is a wasteful number, since it uses less digits than its factorization.

72025518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50471.

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 72025518 is about 8486.7849036016. The cubic root of 72025518 is about 416.0659065636.

It can be divided in two parts, 7202 and 5518, that added together give a triangular number (12720 = T₁₅₉).

The spelling of 72025518 in words is "seventy-two million, twenty-five thousand, five hundred eighteen".