1500500001 has 96 divisors (see below), whose sum is σ = 2802473856. Its totient is φ = 701568000.

The previous prime is 1500499997. The next prime is 1500500033. The reversal of 1500500001 is 1000050051.

It is not a de Polignac number, because 1500500001 - 2² = 1500499997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1500500001.

It is not an unprimeable number, because it can be changed into a prime (1500500101) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 860991 + ... + 862731.

It is an arithmetic number, because the mean of its divisors is an integer number (29192436).

Almost surely, 2^1500500001 is an apocalyptic number.

1500500001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1500500001 is a deficient number, since it is larger than the sum of its proper divisors (1301973855).

1500500001 is a wasteful number, since it uses less digits than its factorization.

1500500001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1823 (or 1816 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 12.

The square root of 1500500001 is about 38736.2879094009. The cubic root of 1500500001 is about 1144.8414191494.

Adding to 1500500001 its reverse (1000050051), we get a palindrome (2500550052).

It can be divided in two parts, 1500 and 500001, that added together give a triangular number (501501 = T₁₀₀₁).

The spelling of 1500500001 in words is "one billion, five hundred million, five hundred thousand, one".