2150515501 has 4 divisors (see below), whose sum is σ = 2151521152. Its totient is φ = 2149509852.

The previous prime is 2150515463. The next prime is 2150515529. The reversal of 2150515501 is 1055150512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2150515501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2150515901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 499611 + ... + 503896.

It is an arithmetic number, because the mean of its divisors is an integer number (537880288).

Almost surely, 2^2150515501 is an apocalyptic number.

It is an amenable number.

2150515501 is a deficient number, since it is larger than the sum of its proper divisors (1005651).

2150515501 is a wasteful number, since it uses less digits than its factorization.

2150515501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005650.

The product of its (nonzero) digits is 1250, while the sum is 25.

The square root of 2150515501 is about 46373.6509345555. The cubic root of 2150515501 is about 1290.7660256100.

The spelling of 2150515501 in words is "two billion, one hundred fifty million, five hundred fifteen thousand, five hundred one".