1002255497 has 4 divisors (see below), whose sum is σ = 1002331776. Its totient is φ = 1002179220.

The previous prime is 1002255487. The next prime is 1002255509. The reversal of 1002255497 is 7945522001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1002255497 - 2¹² = 1002251401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002255467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12833 + ... + 46574.

It is an arithmetic number, because the mean of its divisors is an integer number (250582944).

Almost surely, 2^1002255497 is an apocalyptic number.

It is an amenable number.

1002255497 is a deficient number, since it is larger than the sum of its proper divisors (76279).

1002255497 is an equidigital number, since it uses as much as digits as its factorization.

1002255497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76278.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 1002255497 is about 31658.4190540210. The cubic root of 1002255497 is about 1000.7512677887.

Adding to 1002255497 its reverse (7945522001), we get a palindrome (8947777498).

The spelling of 1002255497 in words is "one billion, two million, two hundred fifty-five thousand, four hundred ninety-seven".