53071900 has 54 divisors (see below), whose sum is σ = 133981008. Its totient is φ = 18194400.

The previous prime is 53071897. The next prime is 53071913. The reversal of 53071900 is 917035.

It is a super-2 number, since 2×53071900² = 5633253139220000, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 516 + ... + 10315.

Almost surely, 2^53071900 is an apocalyptic number.

53071900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53071900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66990504).

53071900 is an abundant number, since it is smaller than the sum of its proper divisors (80909108).

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

53071900 is a wasteful number, since it uses less digits than its factorization.

53071900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10859 (or 10845 counting only the distinct ones).

The product of its (nonzero) digits is 945, while the sum is 25.

The square root of 53071900 is about 7285.0463279241. The cubic root of 53071900 is about 375.7983583835.

Adding to 53071900 its reverse (917035), we get a palindrome (53988935).

The spelling of 53071900 in words is "fifty-three million, seventy-one thousand, nine hundred".