6530515901 has 16 divisors (see below), whose sum is σ = 8115604224. Its totient is φ = 5116829184.

The previous prime is 6530515889. The next prime is 6530515903. The reversal of 6530515901 is 1095150356.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 6530515901 - 2³⁰ = 5456774077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6530515903) 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, 338996 + ... + 357741.

It is an arithmetic number, because the mean of its divisors is an integer number (507225264).

Almost surely, 2^6530515901 is an apocalyptic number.

It is an amenable number.

6530515901 is a deficient number, since it is larger than the sum of its proper divisors (1585088323).

6530515901 is a wasteful number, since it uses less digits than its factorization.

6530515901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696860.

The product of its (nonzero) digits is 20250, while the sum is 35.

The square root of 6530515901 is about 80811.6074645221. The cubic root of 6530515901 is about 1869.1715568384.

The spelling of 6530515901 in words is "six billion, five hundred thirty million, five hundred fifteen thousand, nine hundred one".