555500000061 has 12 divisors (see below), whose sum is σ = 802426034592. Its totient is φ = 370316189256.

The previous prime is 555500000051. The next prime is 555500000063. The reversal of 555500000061 is 160000005555.

555500000061 is a `hidden beast` number, since 55 + 550 + 0 + 0 + 0 + 0 + 0 + 61 = 666.

It is not a de Polignac number, because 555500000061 - 2¹³ = 555499991869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 555499999980 and 555500000034.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555500000063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1221891 + ... + 1613696.

It is an arithmetic number, because the mean of its divisors is an integer number (66868836216).

Almost surely, 2^555500000061 is an apocalyptic number.

It is an amenable number.

555500000061 is a deficient number, since it is larger than the sum of its proper divisors (246926034531).

555500000061 is a wasteful number, since it uses less digits than its factorization.

555500000061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857360 (or 2857357 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The spelling of 555500000061 in words is "five hundred fifty-five billion, five hundred million, sixty-one", and thus it is an aban number.