90220526 has 16 divisors (see below), whose sum is σ = 147813120. Its totient is φ = 40959480.

The previous prime is 90220523. The next prime is 90220549. The reversal of 90220526 is 62502209.

It is a junction number, because it is equal to n+sod(n) for n = 90220495 and 90220504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90220523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20885 + ... + 24831.

It is an arithmetic number, because the mean of its divisors is an integer number (9238320).

Almost surely, 2^90220526 is an apocalyptic number.

90220526 is a deficient number, since it is larger than the sum of its proper divisors (57592594).

90220526 is a wasteful number, since it uses less digits than its factorization.

90220526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4999.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 90220526 is about 9498.4486101679. The cubic root of 90220526 is about 448.5062006486.

The spelling of 90220526 in words is "ninety million, two hundred twenty thousand, five hundred twenty-six".