52987500 has 144 divisors (see below), whose sum is σ = 172801440. Its totient is φ = 14040000.

The previous prime is 52987499. The next prime is 52987537. The reversal of 52987500 is 578925.

Added to its reverse (578925) it gives a triangular number (53566425 = T₁₀₃₅₀).

52987500 is a `hidden beast` number, since 529 + 87 + 50 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 47 ways as a sum of consecutive naturals, for example, 337422 + ... + 337578.

It is an arithmetic number, because the mean of its divisors is an integer number (1200010).

Almost surely, 2^52987500 is an apocalyptic number.

52987500 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 52987500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86400720).

52987500 is an abundant number, since it is smaller than the sum of its proper divisors (119813940).

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

52987500 is a wasteful number, since it uses less digits than its factorization.

52987500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 52987500 is about 7279.2513351306. The cubic root of 52987500 is about 375.5990425518.

Adding to 52987500 its reverse (578925), we get a triangular number (53566425 = T₁₀₃₅₀).

The spelling of 52987500 in words is "fifty-two million, nine hundred eighty-seven thousand, five hundred".