61006517 has 32 divisors (see below), whose sum is σ = 75962880. Its totient is φ = 48222720.

The previous prime is 61006487. The next prime is 61006529. The reversal of 61006517 is 71560016.

It is not a de Polignac number, because 61006517 - 2²⁴ = 44229301 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 (61006597) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 194753 + ... + 195065.

It is an arithmetic number, because the mean of its divisors is an integer number (2373840).

Almost surely, 2^61006517 is an apocalyptic number.

It is an amenable number.

61006517 is a deficient number, since it is larger than the sum of its proper divisors (14956363).

61006517 is a wasteful number, since it uses less digits than its factorization.

61006517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 61006517 is about 7810.6668729373. Note that the first 3 decimals coincide. The cubic root of 61006517 is about 393.6637364734.

The spelling of 61006517 in words is "sixty-one million, six thousand, five hundred seventeen".