72275502 has 32 divisors (see below), whose sum is σ = 157116960. Its totient is φ = 22032000.

The previous prime is 72275479. The next prime is 72275503. The reversal of 72275502 is 20557227.

It is a self number, because there is not a number n which added to its sum of digits gives 72275502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72275503) 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, 4252 + ... + 12752.

It is an arithmetic number, because the mean of its divisors is an integer number (4909905).

Almost surely, 2^72275502 is an apocalyptic number.

It is a pronic number, being equal to 8501×8502.

It is a practical number, because each smaller number is the sum of distinct divisors of 72275502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78558480).

72275502 is an abundant number, since it is smaller than the sum of its proper divisors (84841458).

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

72275502 is a wasteful number, since it uses less digits than its factorization.

72275502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8628.

The product of its (nonzero) digits is 9800, while the sum is 30.

The square root of 72275502 is about 8501.4999852967. The cubic root of 72275502 is about 416.5467070844.

The spelling of 72275502 in words is "seventy-two million, two hundred seventy-five thousand, five hundred two".