61567315 has 16 divisors (see below), whose sum is σ = 78059520. Its totient is φ = 46487520.

The previous prime is 61567313. The next prime is 61567339. The reversal of 61567315 is 51376516.

It is not a de Polignac number, because 61567315 - 2¹ = 61567313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61567313) 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, 28110 + ... + 30220.

It is an arithmetic number, because the mean of its divisors is an integer number (4878720).

Almost surely, 2^61567315 is an apocalyptic number.

61567315 is a deficient number, since it is larger than the sum of its proper divisors (16492205).

61567315 is a wasteful number, since it uses less digits than its factorization.

61567315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2442.

The product of its digits is 18900, while the sum is 34.

The square root of 61567315 is about 7846.4842445518. The cubic root of 61567315 is about 394.8663009560.

The spelling of 61567315 in words is "sixty-one million, five hundred sixty-seven thousand, three hundred fifteen".