90175025 has 6 divisors (see below), whose sum is σ = 111817062. Its totient is φ = 72140000.

The previous prime is 90175003. The next prime is 90175027. The reversal of 90175025 is 52057109.

It can be written as a sum of positive squares in 3 ways, for example, as 152881 + 90022144 = 391^2 + 9488^2 .

It is not a de Polignac number, because 90175025 - 2¹² = 90170929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90175027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1803476 + ... + 1803525.

It is an arithmetic number, because the mean of its divisors is an integer number (18636177).

Almost surely, 2^90175025 is an apocalyptic number.

It is an amenable number.

90175025 is a deficient number, since it is larger than the sum of its proper divisors (21642037).

90175025 is a wasteful number, since it uses less digits than its factorization.

90175025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3607011 (or 3607006 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 90175025 is about 9496.0531274841. The cubic root of 90175025 is about 448.4307894563.

The spelling of 90175025 in words is "ninety million, one hundred seventy-five thousand, twenty-five".