55466250 has 80 divisors (see below), whose sum is σ = 158499264. Its totient is φ = 12672000.

The previous prime is 55466237. The next prime is 55466261. The reversal of 55466250 is 5266455.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 25194 + ... + 27306.

Almost surely, 2^55466250 is an apocalyptic number.

55466250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 55466250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79249632).

55466250 is an abundant number, since it is smaller than the sum of its proper divisors (103033014).

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

55466250 is a wasteful number, since it uses less digits than its factorization.

55466250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2145 (or 2130 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 55466250 is about 7447.5667167203. The cubic root of 55466250 is about 381.3668458480.

The spelling of 55466250 in words is "fifty-five million, four hundred sixty-six thousand, two hundred fifty".