99256505 has 4 divisors (see below), whose sum is σ = 119107812. Its totient is φ = 79405200.

The previous prime is 99256483. The next prime is 99256519. The reversal of 99256505 is 50565299.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50565299 = 29 ⋅1743631.

It can be written as a sum of positive squares in 2 ways, for example, as 9935104 + 89321401 = 3152^2 + 9451^2 .

It is not a de Polignac number, because 99256505 - 2⁶ = 99256441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9925646 + ... + 9925655.

It is an arithmetic number, because the mean of its divisors is an integer number (29776953).

Almost surely, 2^99256505 is an apocalyptic number.

It is an amenable number.

99256505 is a deficient number, since it is larger than the sum of its proper divisors (19851307).

99256505 is a wasteful number, since it uses less digits than its factorization.

99256505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19851306.

The product of its (nonzero) digits is 121500, while the sum is 41.

The square root of 99256505 is about 9962.7558938278. The cubic root of 99256505 is about 463.0056879416.

The spelling of 99256505 in words is "ninety-nine million, two hundred fifty-six thousand, five hundred five".