55617283950 has 48 divisors (see below), whose sum is σ = 137945206656. Its totient is φ = 14829733600.

The previous prime is 55617283937. The next prime is 55617283951. The reversal of 55617283950 is 5938271655.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 55617283893 and 55617283902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55617283951) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2745559 + ... + 2765741.

It is an arithmetic number, because the mean of its divisors is an integer number (2873858472).

Almost surely, 2^55617283950 is an apocalyptic number.

55617283950 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55617283950 is an abundant number, since it is smaller than the sum of its proper divisors (82327922706).

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

55617283950 is a wasteful number, since it uses less digits than its factorization.

55617283950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38569 (or 38564 counting only the distinct ones).

The product of its (nonzero) digits is 2268000, while the sum is 51.

The spelling of 55617283950 in words is "fifty-five billion, six hundred seventeen million, two hundred eighty-three thousand, nine hundred fifty".