52739946 has 48 divisors (see below), whose sum is σ = 131249664. Its totient is φ = 14992992.

The previous prime is 52739941. The next prime is 52739957. The reversal of 52739946 is 64993725.

It is a happy number.

52739946 is a `hidden beast` number, since 527 + 39 + 94 + 6 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52739941) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27160 + ... + 29036.

It is an arithmetic number, because the mean of its divisors is an integer number (2734368).

Almost surely, 2^52739946 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52739946, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65624832).

52739946 is an abundant number, since it is smaller than the sum of its proper divisors (78509718).

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

52739946 is a wasteful number, since it uses less digits than its factorization.

52739946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2115 (or 2112 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 52739946 is about 7262.2273442794. The cubic root of 52739946 is about 375.0132048683.

The spelling of 52739946 in words is "fifty-two million, seven hundred thirty-nine thousand, nine hundred forty-six".