55555051061 has 8 divisors (see below), whose sum is σ = 56845582464. Its totient is φ = 54269040960.

The previous prime is 55555051049. The next prime is 55555051063. The reversal of 55555051061 is 16015055555.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 55555051061 - 2¹⁸ = 55554788917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55555051063) 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, 1105460 + ... + 1154621.

It is an arithmetic number, because the mean of its divisors is an integer number (7105697808).

Almost surely, 2^55555051061 is an apocalyptic number.

It is an amenable number.

55555051061 is a deficient number, since it is larger than the sum of its proper divisors (1290531403).

55555051061 is a wasteful number, since it uses less digits than its factorization.

55555051061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2260651.

The product of its (nonzero) digits is 93750, while the sum is 38.

The spelling of 55555051061 in words is "fifty-five billion, five hundred fifty-five million, fifty-one thousand, sixty-one".