55823250 has 160 divisors (see below), whose sum is σ = 167791104. Its totient is φ = 12348000.

The previous prime is 55823249. The next prime is 55823293. The reversal of 55823250 is 5232855.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1800735 + ... + 1800765.

Almost surely, 2^55823250 is an apocalyptic number.

55823250 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 55823250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83895552).

55823250 is an abundant number, since it is smaller than the sum of its proper divisors (111967854).

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

55823250 is an equidigital number, since it uses as much as digits as its factorization.

55823250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79 (or 48 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 55823250 is about 7471.4958341687. The cubic root of 55823250 is about 382.1832997305.

The spelling of 55823250 in words is "fifty-five million, eight hundred twenty-three thousand, two hundred fifty".