72502256 has 40 divisors (see below), whose sum is σ = 147323904. Its totient is φ = 34499520.

The previous prime is 72502253. The next prime is 72502259. The reversal of 72502256 is 65220527.

It is an interprime number because it is at equal distance from previous prime (72502253) and next prime (72502259).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72502253) 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, 99365 + ... + 100091.

Almost surely, 2^72502256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72502256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73661952).

72502256 is an abundant number, since it is smaller than the sum of its proper divisors (74821648).

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

72502256 is a wasteful number, since it uses less digits than its factorization.

72502256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029 (or 1023 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 72502256 is about 8514.8256588142. The cubic root of 72502256 is about 416.9818707889.

The spelling of 72502256 in words is "seventy-two million, five hundred two thousand, two hundred fifty-six".