1565032255 has 4 divisors (see below), whose sum is σ = 1878038712. Its totient is φ = 1252025800.

The previous prime is 1565032237. The next prime is 1565032277. The reversal of 1565032255 is 5522305651.

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

It is not a de Polignac number, because 1565032255 - 2⁷ = 1565032127 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1565032255.

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, 156503221 + ... + 156503230.

It is an arithmetic number, because the mean of its divisors is an integer number (469509678).

Almost surely, 2^1565032255 is an apocalyptic number.

1565032255 is a deficient number, since it is larger than the sum of its proper divisors (313006457).

1565032255 is an equidigital number, since it uses as much as digits as its factorization.

1565032255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313006456.

The product of its (nonzero) digits is 45000, while the sum is 34.

The square root of 1565032255 is about 39560.4885586617. The cubic root of 1565032255 is about 1161.0237333489.

The spelling of 1565032255 in words is "one billion, five hundred sixty-five million, thirty-two thousand, two hundred fifty-five".