53442250 has 32 divisors (see below), whose sum is σ = 105318720. Its totient is φ = 20250000.

The previous prime is 53442227. The next prime is 53442251. The reversal of 53442250 is 5224435.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (53442251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 876 + ... + 10375.

It is an arithmetic number, because the mean of its divisors is an integer number (3291210).

Almost surely, 2^53442250 is an apocalyptic number.

53442250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

53442250 is a deficient number, since it is larger than the sum of its proper divisors (51876470).

53442250 is a wasteful number, since it uses less digits than its factorization.

53442250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11287 (or 11277 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 53442250 is about 7310.4206445320. The cubic root of 53442250 is about 376.6704735912.

Adding to 53442250 its reverse (5224435), we get a palindrome (58666685).

The spelling of 53442250 in words is "fifty-three million, four hundred forty-two thousand, two hundred fifty".