90625441 has 4 divisors (see below), whose sum is σ = 90644500. Its totient is φ = 90606384.

The previous prime is 90625417. The next prime is 90625463. The reversal of 90625441 is 14452609.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 14452609 = 1103 ⋅13103.

It can be written as a sum of positive squares in 2 ways, for example, as 21669025 + 68956416 = 4655^2 + 8304^2 .

It is a cyclic number.

It is not a de Polignac number, because 90625441 - 2¹⁵ = 90592673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90625481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4135 + ... + 14083.

It is an arithmetic number, because the mean of its divisors is an integer number (22661125).

Almost surely, 2^90625441 is an apocalyptic number.

It is an amenable number.

90625441 is a deficient number, since it is larger than the sum of its proper divisors (19059).

90625441 is an equidigital number, since it uses as much as digits as its factorization.

90625441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19058.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 90625441 is about 9519.7395447565. The cubic root of 90625441 is about 449.1761733781.

The spelling of 90625441 in words is "ninety million, six hundred twenty-five thousand, four hundred forty-one".