91490255 has 8 divisors (see below), whose sum is σ = 110016672. Its totient is φ = 73039968.

The previous prime is 91490249. The next prime is 91490261. The reversal of 91490255 is 55209419.

It is an interprime number because it is at equal distance from previous prime (91490249) and next prime (91490261).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91490255 - 2⁴ = 91490239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16352 + ... + 21221.

It is an arithmetic number, because the mean of its divisors is an integer number (13752084).

Almost surely, 2^91490255 is an apocalyptic number.

91490255 is a deficient number, since it is larger than the sum of its proper divisors (18526417).

91490255 is a wasteful number, since it uses less digits than its factorization.

91490255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38065.

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 91490255 is about 9565.0538419812. The cubic root of 91490255 is about 450.6004412649.

The spelling of 91490255 in words is "ninety-one million, four hundred ninety thousand, two hundred fifty-five".