52661700 has 216 divisors, whose sum is σ = 203473088. Its totient is φ = 11093760.

The previous prime is 52661683. The next prime is 52661731. The reversal of 52661700 is 716625.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 81579 + ... + 82221.

Almost surely, 2^52661700 is an apocalyptic number.

52661700 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 52661700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101736544).

52661700 is an abundant number, since it is smaller than the sum of its proper divisors (150811388).

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

52661700 is a wasteful number, since it uses less digits than its factorization.

52661700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683 (or 673 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 52661700 is about 7256.8381544582. The cubic root of 52661700 is about 374.8276541372.

It can be divided in two parts, 52661 and 700, that added together give a square (53361 = 231²).

The spelling of 52661700 in words is "fifty-two million, six hundred sixty-one thousand, seven hundred".