90425345 has 12 divisors (see below), whose sum is σ = 111103956. Its totient is φ = 70650720.

The previous prime is 90425341. The next prime is 90425359. The reversal of 90425345 is 54352409.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 35724529 + 54700816 = 5977^2 + 7396^2 .

It is not a de Polignac number, because 90425345 - 2² = 90425341 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90425341) 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, 4355 + ... + 14135.

It is an arithmetic number, because the mean of its divisors is an integer number (9258663).

Almost surely, 2^90425345 is an apocalyptic number.

It is an amenable number.

90425345 is a deficient number, since it is larger than the sum of its proper divisors (20678611).

90425345 is an equidigital number, since it uses as much as digits as its factorization.

90425345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9872 (or 9829 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 90425345 is about 9509.2242060012. The cubic root of 90425345 is about 448.8453443281.

The spelling of 90425345 in words is "ninety million, four hundred twenty-five thousand, three hundred forty-five".