55899643758 has 16 divisors (see below), whose sum is σ = 127770614400. Its totient is φ = 15971326776.

The previous prime is 55899643753. The next prime is 55899643801. The reversal of 55899643758 is 85734699855.

It is a junction number, because it is equal to n+sod(n) for n = 55899643692 and 55899643701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55899643753) 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, 665471908 + ... + 665471991.

It is an arithmetic number, because the mean of its divisors is an integer number (7985663400).

Almost surely, 2^55899643758 is an apocalyptic number.

55899643758 is an abundant number, since it is smaller than the sum of its proper divisors (71870970642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55899643758 is a wasteful number, since it uses less digits than its factorization.

55899643758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330943911.

The product of its digits is 326592000, while the sum is 69.

The spelling of 55899643758 in words is "fifty-five billion, eight hundred ninety-nine million, six hundred forty-three thousand, seven hundred fifty-eight".