90553790 has 32 divisors (see below), whose sum is σ = 171141120. Its totient is φ = 34452000.

The previous prime is 90553787. The next prime is 90553807. The reversal of 90553790 is 9735509.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15815 + ... + 20765.

It is an arithmetic number, because the mean of its divisors is an integer number (5348160).

Almost surely, 2^90553790 is an apocalyptic number.

90553790 is a deficient number, since it is larger than the sum of its proper divisors (80587330).

90553790 is a wasteful number, since it uses less digits than its factorization.

90553790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5048.

The product of its (nonzero) digits is 42525, while the sum is 38.

The square root of 90553790 is about 9515.9755148907. The cubic root of 90553790 is about 449.0577650989.

The spelling of 90553790 in words is "ninety million, five hundred fifty-three thousand, seven hundred ninety".