255099997 has 4 divisors (see below), whose sum is σ = 257576800. Its totient is φ = 252623196.

The previous prime is 255099983. The next prime is 255100007. The reversal of 255099997 is 799990552.

255099997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 255099997 - 2⁷ = 255099869 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 (255099907) 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, 1238247 + ... + 1238452.

It is an arithmetic number, because the mean of its divisors is an integer number (64394200).

Almost surely, 2^255099997 is an apocalyptic number.

It is an amenable number.

255099997 is a deficient number, since it is larger than the sum of its proper divisors (2476803).

255099997 is a wasteful number, since it uses less digits than its factorization.

255099997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2476802.

The product of its (nonzero) digits is 2296350, while the sum is 55.

The square root of 255099997 is about 15971.8501432990. The cubic root of 255099997 is about 634.2154503655.

The spelling of 255099997 in words is "two hundred fifty-five million, ninety-nine thousand, nine hundred ninety-seven".