4255140215 has 4 divisors (see below), whose sum is σ = 5106168264. Its totient is φ = 3404112168.

The previous prime is 4255140191. The next prime is 4255140221. The reversal of 4255140215 is 5120415524.

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

It is a cyclic number.

It is not a de Polignac number, because 4255140215 - 2¹⁸ = 4254878071 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 3 ways as a sum of consecutive naturals, for example, 425514017 + ... + 425514026.

It is an arithmetic number, because the mean of its divisors is an integer number (1276542066).

Almost surely, 2^4255140215 is an apocalyptic number.

4255140215 is a deficient number, since it is larger than the sum of its proper divisors (851028049).

4255140215 is an equidigital number, since it uses as much as digits as its factorization.

4255140215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851028048.

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 4255140215 is about 65231.4357882762. The cubic root of 4255140215 is about 1620.4586689618.

Adding to 4255140215 its reverse (5120415524), we get a palindrome (9375555739).

The spelling of 4255140215 in words is "four billion, two hundred fifty-five million, one hundred forty thousand, two hundred fifteen".