55555550050050 has 36 divisors (see below), whose sum is σ = 149259244469010. Its totient is φ = 14814813346560.

The previous prime is 55555550050009. The next prime is 55555550050061. The reversal of 55555550050050 is 5005005555555.

It can be written as a sum of positive squares in 3 ways, for example, as 46708845665769 + 8846704384281 = 6834387^2 + 2974341^2 .

It is a super-2 number, since 2×55555550050050² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 55555550049978 and 55555550050005.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 61728388495 + ... + 61728389394.

Almost surely, 2^{55555550050050} is an apocalyptic number.

55555550050050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55555550050050 is an abundant number, since it is smaller than the sum of its proper divisors (93703694418960).

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

55555550050050 is a wasteful number, since it uses less digits than its factorization.

55555550050050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123456777907 (or 123456777899 counting only the distinct ones).

The product of its (nonzero) digits is 1953125, while the sum is 45.

The spelling of 55555550050050 in words is "fifty-five trillion, five hundred fifty-five billion, five hundred fifty million, fifty thousand, fifty".