555001000061 has 4 divisors (see below), whose sum is σ = 555046717632. Its totient is φ = 554955282492.

The previous prime is 555001000027. The next prime is 555001000117. The reversal of 555001000061 is 160000100555.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-555001000061 is a prime.

It is a super-2 number, since 2×555001000061² (a number of 24 digits) 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 (555001000661) 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, 22840571 + ... + 22864856.

It is an arithmetic number, because the mean of its divisors is an integer number (138761679408).

Almost surely, 2^555001000061 is an apocalyptic number.

It is an amenable number.

555001000061 is a deficient number, since it is larger than the sum of its proper divisors (45717571).

555001000061 is a wasteful number, since it uses less digits than its factorization.

555001000061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45717570.

The product of its (nonzero) digits is 750, while the sum is 23.

The spelling of 555001000061 in words is "five hundred fifty-five billion, one million, sixty-one", and thus it is an aban number.