275625090 has 48 divisors (see below), whose sum is σ = 771753528. Its totient is φ = 67845888.

The previous prime is 275625071. The next prime is 275625107. The reversal of 275625090 is 90526572.

275625090 is a `hidden beast` number, since 2 + 7 + 562 + 5 + 0 + 90 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 119049921 + 156575169 = 10911^2 + 12513^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116619 + ... + 118958.

Almost surely, 2^275625090 is an apocalyptic number.

275625090 is an abundant number, since it is smaller than the sum of its proper divisors (496128438).

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

275625090 is a wasteful number, since it uses less digits than its factorization.

275625090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235603 (or 235600 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 275625090 is about 16601.9604264075. The cubic root of 275625090 is about 650.7880697872.

It can be divided in two parts, 2756250 and 90, that multiplied together give a square (248062500 = 15750²).

The spelling of 275625090 in words is "two hundred seventy-five million, six hundred twenty-five thousand, ninety".