275264649 has 20 divisors (see below), whose sum is σ = 448580880. Its totient is φ = 166826520.

The previous prime is 275264623. The next prime is 275264653. The reversal of 275264649 is 946462572.

It is not a de Polignac number, because 275264649 - 2⁵ = 275264617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (275264659) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 153579 + ... + 155360.

It is an arithmetic number, because the mean of its divisors is an integer number (22429044).

Almost surely, 2^275264649 is an apocalyptic number.

It is an amenable number.

275264649 is a deficient number, since it is larger than the sum of its proper divisors (173316231).

275264649 is a wasteful number, since it uses less digits than its factorization.

275264649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308962 (or 308953 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 275264649 is about 16591.1015005032. The cubic root of 275264649 is about 650.5042627408.

The spelling of 275264649 in words is "two hundred seventy-five million, two hundred sixty-four thousand, six hundred forty-nine".