90548455 has 4 divisors (see below), whose sum is σ = 108658152. Its totient is φ = 72438760.

The previous prime is 90548453. The next prime is 90548467. The reversal of 90548455 is 55484509.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55484509 = 67 ⋅828127.

It is not a de Polignac number, because 90548455 - 2¹ = 90548453 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90548453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9054841 + ... + 9054850.

It is an arithmetic number, because the mean of its divisors is an integer number (27164538).

Almost surely, 2^90548455 is an apocalyptic number.

90548455 is a deficient number, since it is larger than the sum of its proper divisors (18109697).

90548455 is a wasteful number, since it uses less digits than its factorization.

90548455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18109696.

The product of its (nonzero) digits is 144000, while the sum is 40.

The square root of 90548455 is about 9515.6951926804. The cubic root of 90548455 is about 449.0489461409.

The spelling of 90548455 in words is "ninety million, five hundred forty-eight thousand, four hundred fifty-five".