61062515 has 4 divisors (see below), whose sum is σ = 73275024. Its totient is φ = 48850008.

The previous prime is 61062499. The next prime is 61062517. The reversal of 61062515 is 51526016.

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 61062515 - 2⁴ = 61062499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61062517) by changing a digit.

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, 6106247 + ... + 6106256.

It is an arithmetic number, because the mean of its divisors is an integer number (18318756).

Almost surely, 2^61062515 is an apocalyptic number.

61062515 is a deficient number, since it is larger than the sum of its proper divisors (12212509).

61062515 is a wasteful number, since it uses less digits than its factorization.

61062515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12212508.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 61062515 is about 7814.2507638289. The cubic root of 61062515 is about 393.7841478741.

The spelling of 61062515 in words is "sixty-one million, sixty-two thousand, five hundred fifteen".