90563450 has 24 divisors (see below), whose sum is σ = 168856380. Its totient is φ = 36137600.

The previous prime is 90563449. The next prime is 90563453. The reversal of 90563450 is 5436509.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 10764961 + 79798489 = 3281^2 + 8933^2 .

It is a super-3 number, since 3×90563450³ (a number of 25 digits) contains 333 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (90563453) 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, 21086 + ... + 25014.

Almost surely, 2^90563450 is an apocalyptic number.

90563450 is a deficient number, since it is larger than the sum of its proper divisors (78292930).

90563450 is a wasteful number, since it uses less digits than its factorization.

90563450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4402 (or 4397 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 90563450 is about 9516.4830688653. The cubic root of 90563450 is about 449.0737325652.

Adding to 90563450 its reverse (5436509), we get a palindrome (95999959).

The spelling of 90563450 in words is "ninety million, five hundred sixty-three thousand, four hundred fifty".