52097500 has 120 divisors (see below), whose sum is σ = 140829920. Its totient is φ = 16416000.

The previous prime is 52097489. The next prime is 52097501. The reversal of 52097500 is 579025.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52097501) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 227386 + ... + 227614.

Almost surely, 2^52097500 is an apocalyptic number.

52097500 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 52097500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70414960).

52097500 is an abundant number, since it is smaller than the sum of its proper divisors (88732420).

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

52097500 is a wasteful number, since it uses less digits than its factorization.

52097500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 52097500 is about 7217.8597935953. The cubic root of 52097500 is about 373.4842519795.

The spelling of 52097500 in words is "fifty-two million, ninety-seven thousand, five hundred".