55225350 has 72 divisors (see below), whose sum is σ = 157121640. Its totient is φ = 13858560.

The previous prime is 55225337. The next prime is 55225361. The reversal of 55225350 is 5352255.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4041 + ... + 11259.

It is an arithmetic number, because the mean of its divisors is an integer number (2182245).

Almost surely, 2^55225350 is an apocalyptic number.

55225350 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 55225350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78560820).

55225350 is an abundant number, since it is smaller than the sum of its proper divisors (101896290).

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

55225350 is a wasteful number, since it uses less digits than its factorization.

55225350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7254 (or 7246 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 27.

The square root of 55225350 is about 7431.3760502346. The cubic root of 55225350 is about 380.8139294374.

The spelling of 55225350 in words is "fifty-five million, two hundred twenty-five thousand, three hundred fifty".