275505030 has 32 divisors (see below), whose sum is σ = 734680800. Its totient is φ = 73467936.

The previous prime is 275505007. The next prime is 275505047. The reversal of 275505030 is 30505572.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 275504985 and 275505003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 509925 + ... + 510464.

It is an arithmetic number, because the mean of its divisors is an integer number (22958775).

Almost surely, 2^275505030 is an apocalyptic number.

275505030 is an abundant number, since it is smaller than the sum of its proper divisors (459175770).

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

275505030 is a wasteful number, since it uses less digits than its factorization.

275505030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020405 (or 1020399 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 27.

The square root of 275505030 is about 16598.3441945274. The cubic root of 275505030 is about 650.6935634378.

The spelling of 275505030 in words is "two hundred seventy-five million, five hundred five thousand, thirty".