53000700 has 144 divisors (see below), whose sum is σ = 163322880. Its totient is φ = 13248000.

The previous prime is 53000693. The next prime is 53000707. The reversal of 53000700 is 700035.

It is an interprime number because it is at equal distance from previous prime (53000693) and next prime (53000707).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 53000700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53000707) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 381231 + ... + 381369.

Almost surely, 2^53000700 is an apocalyptic number.

53000700 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 53000700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81661440).

53000700 is an abundant number, since it is smaller than the sum of its proper divisors (110322180).

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

53000700 is a wasteful number, since it uses less digits than its factorization.

53000700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 105, while the sum is 15.

The square root of 53000700 is about 7280.1579653192. The cubic root of 53000700 is about 375.6302291255.

Adding to 53000700 its reverse (700035), we get a palindrome (53700735).

The spelling of 53000700 in words is "fifty-three million, seven hundred", and thus it is an aban number.