495255525109 has 4 divisors (see below), whose sum is σ = 495259070380. Its totient is φ = 495251979840.

The previous prime is 495255525043. The next prime is 495255525113. The reversal of 495255525109 is 901525552594.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44070604900 + 451184920209 = 209930^2 + 671703^2 .

It is a cyclic number.

It is not a de Polignac number, because 495255525109 - 2²⁷ = 495121307381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (495255525209) 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, 1554114 + ... + 1845475.

It is an arithmetic number, because the mean of its divisors is an integer number (123814767595).

Almost surely, 2^495255525109 is an apocalyptic number.

It is an amenable number.

495255525109 is a deficient number, since it is larger than the sum of its proper divisors (3545271).

495255525109 is a wasteful number, since it uses less digits than its factorization.

495255525109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3545270.

The product of its (nonzero) digits is 4050000, while the sum is 52.

The spelling of 495255525109 in words is "four hundred ninety-five billion, two hundred fifty-five million, five hundred twenty-five thousand, one hundred nine".