275515475261 has 8 divisors (see below), whose sum is σ = 309609363840. Its totient is φ = 243264499632.

The previous prime is 275515475251. The next prime is 275515475267. The reversal of 275515475261 is 162574515572.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 275515475261 - 2⁶ = 275515475197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275515475267) 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, 460727921 + ... + 460728518.

It is an arithmetic number, because the mean of its divisors is an integer number (38701170480).

Almost surely, 2^275515475261 is an apocalyptic number.

It is an amenable number.

275515475261 is a deficient number, since it is larger than the sum of its proper divisors (34093888579).

275515475261 is a wasteful number, since it uses less digits than its factorization.

275515475261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921456475.

The product of its digits is 2940000, while the sum is 50.

The spelling of 275515475261 in words is "two hundred seventy-five billion, five hundred fifteen million, four hundred seventy-five thousand, two hundred sixty-one".