52257150 has 288 divisors, whose sum is σ = 175488768. Its totient is φ = 11404800.

The previous prime is 52257137. The next prime is 52257187. The reversal of 52257150 is 5175225.

It is a happy number.

It is a super-2 number, since 2×52257150² = 5461619452245000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2272039 + ... + 2272061.

It is an arithmetic number, because the mean of its divisors is an integer number (609336).

Almost surely, 2^52257150 is an apocalyptic number.

52257150 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 52257150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87744384).

52257150 is an abundant number, since it is smaller than the sum of its proper divisors (123231618).

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

52257150 is a wasteful number, since it uses less digits than its factorization.

52257150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78 (or 61 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 52257150 is about 7228.9107063236. The cubic root of 52257150 is about 373.8653704378.

The spelling of 52257150 in words is "fifty-two million, two hundred fifty-seven thousand, one hundred fifty".