55050561551 has 8 divisors (see below), whose sum is σ = 55213830144. Its totient is φ = 54887458360.

The previous prime is 55050561539. The next prime is 55050561607. The reversal of 55050561551 is 15516505055.

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 55050561551 - 2¹⁰ = 55050560527 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 (55050566551) 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, 641930 + ... + 722616.

It is an arithmetic number, because the mean of its divisors is an integer number (6901728768).

Almost surely, 2^55050561551 is an apocalyptic number.

55050561551 is a deficient number, since it is larger than the sum of its proper divisors (163268593).

55050561551 is a wasteful number, since it uses less digits than its factorization.

55050561551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82701.

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

The spelling of 55050561551 in words is "fifty-five billion, fifty million, five hundred sixty-one thousand, five hundred fifty-one".