52665750 has 96 divisors (see below), whose sum is σ = 144555840. Its totient is φ = 13833600.

The previous prime is 52665749. The next prime is 52665793. The reversal of 52665750 is 5756625.

52665750 is a `hidden beast` number, since 526 + 65 + 75 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 200119 + ... + 200381.

It is an arithmetic number, because the mean of its divisors is an integer number (1505790).

Almost surely, 2^52665750 is an apocalyptic number.

52665750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 52665750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72277920).

52665750 is an abundant number, since it is smaller than the sum of its proper divisors (91890090).

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

52665750 is a wasteful number, since it uses less digits than its factorization.

52665750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

The square root of 52665750 is about 7257.1171962426. The cubic root of 52665750 is about 374.8372627211.

The spelling of 52665750 in words is "fifty-two million, six hundred sixty-five thousand, seven hundred fifty".