55150817279 has 8 divisors (see below), whose sum is σ = 55367557392. Its totient is φ = 54934231680.

The previous prime is 55150817263. The next prime is 55150817297. The reversal of 55150817279 is 97271805155.

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 55150817279 - 2⁴ = 55150817263 is a prime.

It is a super-2 number, since 2×55150817279² (a number of 22 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 (55150817209) 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, 704567 + ... + 778919.

It is an arithmetic number, because the mean of its divisors is an integer number (6920944674).

Almost surely, 2^55150817279 is an apocalyptic number.

55150817279 is a deficient number, since it is larger than the sum of its proper divisors (216740113).

55150817279 is a wasteful number, since it uses less digits than its factorization.

55150817279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77257.

The product of its (nonzero) digits is 882000, while the sum is 50.

The spelling of 55150817279 in words is "fifty-five billion, one hundred fifty million, eight hundred seventeen thousand, two hundred seventy-nine".