1475256665 has 16 divisors (see below), whose sum is σ = 1794777600. Its totient is φ = 1163927232.

The previous prime is 1475256661. The next prime is 1475256707. The reversal of 1475256665 is 5666525741.

It is a cyclic number.

It is not a de Polignac number, because 1475256665 - 2² = 1475256661 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1475256661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 477596 + ... + 480674.

It is an arithmetic number, because the mean of its divisors is an integer number (112173600).

Almost surely, 2^1475256665 is an apocalyptic number.

It is an amenable number.

1475256665 is a deficient number, since it is larger than the sum of its proper divisors (319520935).

1475256665 is a wasteful number, since it uses less digits than its factorization.

1475256665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4376.

The product of its digits is 1512000, while the sum is 47.

The square root of 1475256665 is about 38409.0700876759. The cubic root of 1475256665 is about 1138.3850800159.

It can be divided in two parts, 14752 and 56665, that added together give a palindrome (71417).

The spelling of 1475256665 in words is "one billion, four hundred seventy-five million, two hundred fifty-six thousand, six hundred sixty-five".