15006495001 has 3 divisors (see below), whose sum is σ = 15006617503. Its totient is φ = 15006372500.

The previous prime is 15006494977. The next prime is 15006495029. The reversal of 15006495001 is 10059460051.

The square root of 15006495001 is 122501.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 15006005001 + 490000 = 122499^2 + 700^2 .

It is not a de Polignac number, because 15006495001 - 2¹³ = 15006486809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15006495041) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 61251 + ... + 183751.

Almost surely, 2^15006495001 is an apocalyptic number.

15006495001 is the 122501-st square number.

15006495001 is the 61251-st centered octagonal number.

It is an amenable number.

15006495001 is a deficient number, since it is larger than the sum of its proper divisors (122502).

15006495001 is an frugal number, since it uses more digits than its factorization.

15006495001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245002 (or 122501 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 31.

The spelling of 15006495001 in words is "fifteen billion, six million, four hundred ninety-five thousand, one".