61052327515 has 4 divisors (see below), whose sum is σ = 73262793024. Its totient is φ = 48841862008.

The previous prime is 61052327503. The next prime is 61052327533. The reversal of 61052327515 is 51572325016.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61052327515 - 2¹⁹ = 61051803227 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6105232747 + ... + 6105232756.

It is an arithmetic number, because the mean of its divisors is an integer number (18315698256).

Almost surely, 2^61052327515 is an apocalyptic number.

61052327515 is a deficient number, since it is larger than the sum of its proper divisors (12210465509).

61052327515 is a wasteful number, since it uses less digits than its factorization.

61052327515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12210465508.

The product of its (nonzero) digits is 63000, while the sum is 37.

The spelling of 61052327515 in words is "sixty-one billion, fifty-two million, three hundred twenty-seven thousand, five hundred fifteen".