55605605011061 has 4 divisors (see below), whose sum is σ = 63549262869792. Its totient is φ = 47661947152332.

The previous prime is 55605605011049. The next prime is 55605605011189. The reversal of 55605605011061 is 16011050650655.

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 not a de Polignac number, because 55605605011061 - 2³⁸ = 55330727104117 is a prime.

It is a super-2 number, since 2×55605605011061² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55605605010061) 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, 3971828929355 + ... + 3971828929368.

It is an arithmetic number, because the mean of its divisors is an integer number (15887315717448).

Almost surely, 2^{55605605011061} is an apocalyptic number.

It is an amenable number.

55605605011061 is a deficient number, since it is larger than the sum of its proper divisors (7943657858731).

55605605011061 is an equidigital number, since it uses as much as digits as its factorization.

55605605011061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7943657858730.

The product of its (nonzero) digits is 135000, while the sum is 41.

The spelling of 55605605011061 in words is "fifty-five trillion, six hundred five billion, six hundred five million, eleven thousand, sixty-one".