275525028 has 36 divisors (see below), whose sum is σ = 697437468. Its totient is φ = 91713600.

The previous prime is 275525009. The next prime is 275525053. The reversal of 275525028 is 820525572.

It can be written as a sum of positive squares in 2 ways, for example, as 145154304 + 130370724 = 12048^2 + 11418^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 275524983 and 275525001.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22878 + ... + 32778.

It is an arithmetic number, because the mean of its divisors is an integer number (19373263).

Almost surely, 2^275525028 is an apocalyptic number.

It is an amenable number.

275525028 is an abundant number, since it is smaller than the sum of its proper divisors (421912440).

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

275525028 is a wasteful number, since it uses less digits than its factorization.

275525028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10684 (or 10679 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 36.

The square root of 275525028 is about 16598.9465930823. The cubic root of 275525028 is about 650.7093069556.

The spelling of 275525028 in words is "two hundred seventy-five million, five hundred twenty-five thousand, twenty-eight".