90528554 has 8 divisors (see below), whose sum is σ = 137111520. Its totient is φ = 44824716.

The previous prime is 90528551. The next prime is 90528563. The reversal of 90528554 is 45582509.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (90528551) 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, 219524 + ... + 219935.

It is an arithmetic number, because the mean of its divisors is an integer number (17138940).

Almost surely, 2^90528554 is an apocalyptic number.

90528554 is a deficient number, since it is larger than the sum of its proper divisors (46582966).

90528554 is a wasteful number, since it uses less digits than its factorization.

90528554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439564.

The product of its (nonzero) digits is 72000, while the sum is 38.

The square root of 90528554 is about 9514.6494417819. The cubic root of 90528554 is about 449.0160459739.

The spelling of 90528554 in words is "ninety million, five hundred twenty-eight thousand, five hundred fifty-four".