90546550 has 12 divisors (see below), whose sum is σ = 168416676. Its totient is φ = 36218600.

The previous prime is 90546541. The next prime is 90546557. The reversal of 90546550 is 5564509.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90546557) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 905416 + ... + 905515.

It is an arithmetic number, because the mean of its divisors is an integer number (14034723).

Almost surely, 2^90546550 is an apocalyptic number.

90546550 is a deficient number, since it is larger than the sum of its proper divisors (77870126).

90546550 is a wasteful number, since it uses less digits than its factorization.

90546550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810943 (or 1810938 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 90546550 is about 9515.5950943701. The cubic root of 90546550 is about 449.0457970194.

The spelling of 90546550 in words is "ninety million, five hundred forty-six thousand, five hundred fifty".