53552250 has 48 divisors (see below), whose sum is σ = 144811368. Its totient is φ = 14280000.

The previous prime is 53552231. The next prime is 53552263. The reversal of 53552250 is 5225535.

It can be written as a sum of positive squares in 4 ways, for example, as 22382361 + 31169889 = 4731^2 + 5583^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9651 + ... + 14150.

Almost surely, 2^53552250 is an apocalyptic number.

53552250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

53552250 is an abundant number, since it is smaller than the sum of its proper divisors (91259118).

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

53552250 is a wasteful number, since it uses less digits than its factorization.

53552250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23824 (or 23811 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 27.

The square root of 53552250 is about 7317.9402839870. The cubic root of 53552250 is about 376.9287296646.

Adding to 53552250 its reverse (5225535), we get a palindrome (58777785).

The spelling of 53552250 in words is "fifty-three million, five hundred fifty-two thousand, two hundred fifty".