52400250 has 128 divisors (see below), whose sum is σ = 166233600. Its totient is φ = 11966400.

The previous prime is 52400219. The next prime is 52400267. The reversal of 52400250 is 5200425.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 46696 + ... + 47804.

It is an arithmetic number, because the mean of its divisors is an integer number (1298700).

Almost surely, 2^52400250 is an apocalyptic number.

52400250 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 52400250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83116800).

52400250 is an abundant number, since it is smaller than the sum of its proper divisors (113833350).

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

52400250 is a wasteful number, since it uses less digits than its factorization.

52400250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142 (or 1126 counting only the distinct ones).

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

The square root of 52400250 is about 7238.8016964136. The cubic root of 52400250 is about 374.2063213831.

Adding to 52400250 its reverse (5200425), we get a palindrome (57600675).

It can be divided in two parts, 52400 and 250, that added together give a triangular number (52650 = T₃₂₄).

The spelling of 52400250 in words is "fifty-two million, four hundred thousand, two hundred fifty".