7275266155 has 64 divisors (see below), whose sum is σ = 9823334400. Its totient is φ = 5148956160.

The previous prime is 7275266143. The next prime is 7275266177. The reversal of 7275266155 is 5516625727.

It is not a de Polignac number, because 7275266155 - 2⁵ = 7275266123 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19504549 + ... + 19504921.

It is an arithmetic number, because the mean of its divisors is an integer number (153489600).

Almost surely, 2^7275266155 is an apocalyptic number.

7275266155 is a deficient number, since it is larger than the sum of its proper divisors (2548068245).

7275266155 is a wasteful number, since it uses less digits than its factorization.

7275266155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644.

The product of its digits is 882000, while the sum is 46.

The square root of 7275266155 is about 85295.1707601315. The cubic root of 7275266155 is about 1937.6840392921.

It can be divided in two parts, 7275 and 266155, that added together give a triangular number (273430 = T₇₃₉).

The spelling of 7275266155 in words is "seven billion, two hundred seventy-five million, two hundred sixty-six thousand, one hundred fifty-five".