90522551 has 12 divisors (see below), whose sum is σ = 105457752. Its totient is φ = 77475888.

The previous prime is 90522541. The next prime is 90522571. The reversal of 90522551 is 15522509.

It is not a de Polignac number, because 90522551 - 2¹⁴ = 90506167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90522521) 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, 58676 + ... + 60198.

It is an arithmetic number, because the mean of its divisors is an integer number (8788146).

Almost surely, 2^90522551 is an apocalyptic number.

90522551 is a deficient number, since it is larger than the sum of its proper divisors (14935201).

90522551 is a wasteful number, since it uses less digits than its factorization.

90522551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2750 (or 2743 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 90522551 is about 9514.3339756391. Note that the first 3 decimals coincide. The cubic root of 90522551 is about 449.0061209179.

The spelling of 90522551 in words is "ninety million, five hundred twenty-two thousand, five hundred fifty-one".