61996005 has 24 divisors (see below), whose sum is σ = 107688672. Its totient is φ = 32994144.

The previous prime is 61995959. The next prime is 61996013. The reversal of 61996005 is 50069916.

It is not a de Polignac number, because 61996005 - 2⁸ = 61995749 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25242 + ... + 27588.

It is an arithmetic number, because the mean of its divisors is an integer number (4487028).

Almost surely, 2^61996005 is an apocalyptic number.

It is an amenable number.

61996005 is a deficient number, since it is larger than the sum of its proper divisors (45692667).

61996005 is a wasteful number, since it uses less digits than its factorization.

61996005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2945 (or 2942 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 61996005 is about 7873.7541871715. The cubic root of 61996005 is about 395.7806598301.

The spelling of 61996005 in words is "sixty-one million, nine hundred ninety-six thousand, five".