53512250 has 96 divisors (see below), whose sum is σ = 115773840. Its totient is φ = 18480000.

The previous prime is 53512241. The next prime is 53512267. The reversal of 53512250 is 5221535.

It can be written as a sum of positive squares in 8 ways, for example, as 644809 + 52867441 = 803^2 + 7271^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 877220 + ... + 877280.

Almost surely, 2^53512250 is an apocalyptic number.

53512250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

53512250 is an abundant number, since it is smaller than the sum of its proper divisors (62261590).

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

53512250 is a wasteful number, since it uses less digits than its factorization.

53512250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 53512250 is about 7315.2067639951. The cubic root of 53512250 is about 376.8348593191.

Adding to 53512250 its reverse (5221535), we get a palindrome (58733785).

The spelling of 53512250 in words is "fifty-three million, five hundred twelve thousand, two hundred fifty".