1955015065 has 16 divisors (see below), whose sum is σ = 2514187008. Its totient is φ = 1455575616.

The previous prime is 1955015063. The next prime is 1955015107. The reversal of 1955015065 is 5605105591.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1955015065 - 2¹ = 1955015063 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1955015063) 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, 225477 + ... + 233986.

It is an arithmetic number, because the mean of its divisors is an integer number (157136688).

Almost surely, 2^1955015065 is an apocalyptic number.

It is an amenable number.

1955015065 is a deficient number, since it is larger than the sum of its proper divisors (559171943).

1955015065 is a wasteful number, since it uses less digits than its factorization.

1955015065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459528.

The product of its (nonzero) digits is 33750, while the sum is 37.

The square root of 1955015065 is about 44215.5522978058. The cubic root of 1955015065 is about 1250.4030838714.

The spelling of 1955015065 in words is "one billion, nine hundred fifty-five million, fifteen thousand, sixty-five".