61005007 has 8 divisors (see below), whose sum is σ = 71420832. Its totient is φ = 51014400.

The previous prime is 61005001. The next prime is 61005031. The reversal of 61005007 is 70050016.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61005007 is a prime.

It is a super-2 number, since 2×61005007² = 7443221758140098, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61005001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105994 + ... + 106567.

It is an arithmetic number, because the mean of its divisors is an integer number (8927604).

Almost surely, 2^61005007 is an apocalyptic number.

61005007 is a deficient number, since it is larger than the sum of its proper divisors (10415825).

61005007 is a wasteful number, since it uses less digits than its factorization.

61005007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212609.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 61005007 is about 7810.5702096582. The cubic root of 61005007 is about 393.6604885300.

The spelling of 61005007 in words is "sixty-one million, five thousand, seven".