52022250 has 160 divisors (see below), whose sum is σ = 166712832. Its totient is φ = 11858400.

The previous prime is 52022249. The next prime is 52022263. The reversal of 52022250 is 5222025.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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, 141567 + ... + 141933.

Almost surely, 2^52022250 is an apocalyptic number.

52022250 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 52022250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83356416).

52022250 is an abundant number, since it is smaller than the sum of its proper divisors (114690582).

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

52022250 is a wasteful number, since it uses less digits than its factorization.

52022250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403 (or 384 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 52022250 is about 7212.6451458532. The cubic root of 52022250 is about 373.3043442272.

Adding to 52022250 its reverse (5222025), we get a palindrome (57244275).

The spelling of 52022250 in words is "fifty-two million, twenty-two thousand, two hundred fifty".