90474425 has 12 divisors (see below), whose sum is σ = 118788156. Its totient is φ = 68121600.

The previous prime is 90474383. The next prime is 90474427. The reversal of 90474425 is 52447409.

It can be written as a sum of positive squares in 6 ways, for example, as 72361 + 90402064 = 269^2 + 9508^2 .

It is not a de Polignac number, because 90474425 - 2¹⁰ = 90473401 is a prime.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (90474427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106016 + ... + 106865.

It is an arithmetic number, because the mean of its divisors is an integer number (9899013).

Almost surely, 2^90474425 is an apocalyptic number.

It is an amenable number.

90474425 is a deficient number, since it is larger than the sum of its proper divisors (28313731).

90474425 is a wasteful number, since it uses less digits than its factorization.

90474425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212908 (or 212903 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 90474425 is about 9511.8045080836. The cubic root of 90474425 is about 448.9265359641.

The spelling of 90474425 in words is "ninety million, four hundred seventy-four thousand, four hundred twenty-five".