90554255 has 32 divisors (see below), whose sum is σ = 123475968. Its totient is φ = 63158400.

The previous prime is 90554239. The next prime is 90554267. The reversal of 90554255 is 55245509.

It is a Cunningham number, because it is equal to 9516²-1.

It is not a de Polignac number, because 90554255 - 2⁴ = 90554239 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 294812 + ... + 295118.

It is an arithmetic number, because the mean of its divisors is an integer number (3858624).

Almost surely, 2^90554255 is an apocalyptic number.

90554255 is a deficient number, since it is larger than the sum of its proper divisors (32921713).

90554255 is a wasteful number, since it uses less digits than its factorization.

90554255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527.

The product of its (nonzero) digits is 45000, while the sum is 35.

The square root of 90554255 is about 9515.9999474569. Note that the first 4 decimals coincide. The cubic root of 90554255 is about 449.0585337452.

It can be divided in two parts, 90554 and 255, that added together give a palindrome (90809).

The spelling of 90554255 in words is "ninety million, five hundred fifty-four thousand, two hundred fifty-five".