4521517272 has 48 divisors (see below), whose sum is σ = 12257503440. Its totient is φ = 1505729088.

The previous prime is 4521517271. The next prime is 4521517277. The reversal of 4521517272 is 2727151254.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4521517271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46998 + ... + 106074.

It is an arithmetic number, because the mean of its divisors is an integer number (255364655).

Almost surely, 2^4521517272 is an apocalyptic number.

It is an amenable number.

4521517272 is an abundant number, since it is smaller than the sum of its proper divisors (7735986168).

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

4521517272 is a wasteful number, since it uses less digits than its factorization.

4521517272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60152 (or 60145 counting only the distinct ones).

The product of its digits is 39200, while the sum is 36.

The square root of 4521517272 is about 67242.2283390430. The cubic root of 4521517272 is about 1653.5908660934.

The spelling of 4521517272 in words is "four billion, five hundred twenty-one million, five hundred seventeen thousand, two hundred seventy-two".