275030505 has 32 divisors (see below), whose sum is σ = 517708800. Its totient is φ = 138053376.

The previous prime is 275030479. The next prime is 275030531. The reversal of 275030505 is 505030572.

It is an interprime number because it is at equal distance from previous prime (275030479) and next prime (275030531).

It is not a de Polignac number, because 275030505 - 2¹³ = 275022313 is a prime.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57625 + ... + 62214.

It is an arithmetic number, because the mean of its divisors is an integer number (16178400).

Almost surely, 2^275030505 is an apocalyptic number.

It is an amenable number.

275030505 is a deficient number, since it is larger than the sum of its proper divisors (242678295).

275030505 is a wasteful number, since it uses less digits than its factorization.

275030505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119870 (or 119864 counting only the distinct ones).

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

The square root of 275030505 is about 16584.0436866284. The cubic root of 275030505 is about 650.3197677137.

The spelling of 275030505 in words is "two hundred seventy-five million, thirty thousand, five hundred five".