55143405767 has 8 divisors (see below), whose sum is σ = 58390853616. Its totient is φ = 51896371072.

The previous prime is 55143405761. The next prime is 55143405787. The reversal of 55143405767 is 76750434155.

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 55143405767 - 2²⁶ = 55076296903 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 (55143405761) 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, 196373 + ... + 385809.

It is an arithmetic number, because the mean of its divisors is an integer number (7298856702).

Almost surely, 2^55143405767 is an apocalyptic number.

55143405767 is a deficient number, since it is larger than the sum of its proper divisors (3247447849).

55143405767 is a wasteful number, since it uses less digits than its factorization.

55143405767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206577.

The product of its (nonzero) digits is 1764000, while the sum is 47.

The spelling of 55143405767 in words is "fifty-five billion, one hundred forty-three million, four hundred five thousand, seven hundred sixty-seven".