90573542 has 8 divisors (see below), whose sum is σ = 135923376. Its totient is φ = 45265752.

The previous prime is 90573533. The next prime is 90573607. The reversal of 90573542 is 24537509.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4418 + ... + 14165.

It is an arithmetic number, because the mean of its divisors is an integer number (16990422).

Almost surely, 2^90573542 is an apocalyptic number.

90573542 is a deficient number, since it is larger than the sum of its proper divisors (45349834).

90573542 is a wasteful number, since it uses less digits than its factorization.

90573542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21022.

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 90573542 is about 9517.0132919945. The cubic root of 90573542 is about 449.0904128918.

It can be divided in two parts, 905 and 73542, that added together give a palindrome (74447).

The spelling of 90573542 in words is "ninety million, five hundred seventy-three thousand, five hundred forty-two".