1545622755 has 32 divisors (see below), whose sum is σ = 2514063360. Its totient is φ = 810725760.

The previous prime is 1545622739. The next prime is 1545622781. The reversal of 1545622755 is 5572265451.

It is not a de Polignac number, because 1545622755 - 2⁴ = 1545622739 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 318729 + ... + 323541.

It is an arithmetic number, because the mean of its divisors is an integer number (78564480).

Almost surely, 2^1545622755 is an apocalyptic number.

1545622755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1545622755 is a deficient number, since it is larger than the sum of its proper divisors (968440605).

1545622755 is a wasteful number, since it uses less digits than its factorization.

1545622755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5171.

The product of its digits is 420000, while the sum is 42.

The square root of 1545622755 is about 39314.4089997548. The cubic root of 1545622755 is about 1156.2040890268.

The spelling of 1545622755 in words is "one billion, five hundred forty-five million, six hundred twenty-two thousand, seven hundred fifty-five".