55530305280250 has 64 divisors (see below), whose sum is σ = 104277450131712. Its totient is φ = 22142751576000.

The previous prime is 55530305280193. The next prime is 55530305280253. The reversal of 55530305280250 is 5208250303555.

It is a super-2 number, since 2×55530305280250² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55530305280197 and 55530305280206.

It is not an unprimeable number, because it can be changed into a prime (55530305280253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 977497347 + ... + 977554153.

It is an arithmetic number, because the mean of its divisors is an integer number (1629335158308).

Almost surely, 2^{55530305280250} is an apocalyptic number.

55530305280250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55530305280250 is a deficient number, since it is larger than the sum of its proper divisors (48747144851462).

55530305280250 is a wasteful number, since it uses less digits than its factorization.

55530305280250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68968 (or 68958 counting only the distinct ones).

The product of its (nonzero) digits is 900000, while the sum is 43.

The spelling of 55530305280250 in words is "fifty-five trillion, five hundred thirty billion, three hundred five million, two hundred eighty thousand, two hundred fifty".