7275021155 has 16 divisors (see below), whose sum is σ = 8768810304. Its totient is φ = 5794199040.

The previous prime is 7275021133. The next prime is 7275021241. The reversal of 7275021155 is 5511205727.

It is not a de Polignac number, because 7275021155 - 2¹⁴ = 7275004771 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3001274 + ... + 3003696.

It is an arithmetic number, because the mean of its divisors is an integer number (548050644).

Almost surely, 2^7275021155 is an apocalyptic number.

7275021155 is a deficient number, since it is larger than the sum of its proper divisors (1493789149).

7275021155 is a wasteful number, since it uses less digits than its factorization.

7275021155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4846.

The product of its (nonzero) digits is 24500, while the sum is 35.

The square root of 7275021155 is about 85293.7345588760. The cubic root of 7275021155 is about 1937.6622880641.

The spelling of 7275021155 in words is "seven billion, two hundred seventy-five million, twenty-one thousand, one hundred fifty-five".