53100450 has 144 divisors (see below), whose sum is σ = 159442920. Its totient is φ = 12579840.

The previous prime is 53100449. The next prime is 53100461. The reversal of 53100450 is 5400135.

It can be written as a sum of positive squares in 12 ways, for example, as 4198401 + 48902049 = 2049^2 + 6993^2 .

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 71 ways as a sum of consecutive naturals, for example, 169494 + ... + 169806.

Almost surely, 2^53100450 is an apocalyptic number.

53100450 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 53100450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79721460).

53100450 is an abundant number, since it is smaller than the sum of its proper divisors (106342470).

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

53100450 is a wasteful number, since it uses less digits than its factorization.

53100450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373 (or 365 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 53100450 is about 7287.0055578406. The cubic root of 53100450 is about 375.8657331449.

Adding to 53100450 its reverse (5400135), we get a palindrome (58500585).

The spelling of 53100450 in words is "fifty-three million, one hundred thousand, four hundred fifty".