5001000061 has 4 divisors (see below), whose sum is σ = 5117302432. Its totient is φ = 4884697692.

The previous prime is 5001000049. The next prime is 5001000077. The reversal of 5001000061 is 1600001005.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1600001005 = 5 ⋅320000201.

It is a cyclic number.

It is not a de Polignac number, because 5001000061 - 2⁵ = 5001000029 is a prime.

It is a super-2 number, since 2×5001000061² = 50020003220244007442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5001000661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58151121 + ... + 58151206.

It is an arithmetic number, because the mean of its divisors is an integer number (1279325608).

Almost surely, 2^5001000061 is an apocalyptic number.

It is an amenable number.

5001000061 is a deficient number, since it is larger than the sum of its proper divisors (116302371).

5001000061 is a wasteful number, since it uses less digits than its factorization.

5001000061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116302370.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 5001000061 is about 70717.7492642406. The cubic root of 5001000061 is about 1710.0899444271.

Adding to 5001000061 its reverse (1600001005), we get a palindrome (6601001066).

The spelling of 5001000061 in words is "five billion, one million, sixty-one", and thus it is an aban number and an uban number.