53866746 has 48 divisors (see below), whose sum is σ = 124043400. Its totient is φ = 16861824.

The previous prime is 53866739. The next prime is 53866763. The reversal of 53866746 is 64766835.

It can be written as a sum of positive squares in 4 ways, for example, as 53450721 + 416025 = 7311^2 + 645^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17920 + ... + 20708.

Almost surely, 2^53866746 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53866746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62021700).

53866746 is an abundant number, since it is smaller than the sum of its proper divisors (70176654).

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

53866746 is a wasteful number, since it uses less digits than its factorization.

53866746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2863 (or 2860 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 53866746 is about 7339.3968417030. The cubic root of 53866746 is about 377.6651523617.

The spelling of 53866746 in words is "fifty-three million, eight hundred sixty-six thousand, seven hundred forty-six".