52115700 has 288 divisors, whose sum is σ = 195987456. Its totient is φ = 10391040.

The previous prime is 52115683. The next prime is 52115717. The reversal of 52115700 is 751125.

It is an interprime number because it is at equal distance from previous prime (52115683) and next prime (52115717).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 627859 + ... + 627941.

It is an arithmetic number, because the mean of its divisors is an integer number (680512).

Almost surely, 2^52115700 is an apocalyptic number.

52115700 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 52115700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97993728).

52115700 is an abundant number, since it is smaller than the sum of its proper divisors (143871756).

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

52115700 is a wasteful number, since it uses less digits than its factorization.

52115700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 52115700 is about 7219.1204450404. The cubic root of 52115700 is about 373.5277385319.

Adding to 52115700 its reverse (751125), we get a palindrome (52866825).

The spelling of 52115700 in words is "fifty-two million, one hundred fifteen thousand, seven hundred".