52646428 has 12 divisors (see below), whose sum is σ = 92183112. Its totient is φ = 26308400.

The previous prime is 52646423. The next prime is 52646431. The reversal of 52646428 is 82464625.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52646423) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 9603 + ... + 14053.

It is an arithmetic number, because the mean of its divisors is an integer number (7681926).

Almost surely, 2^52646428 is an apocalyptic number.

It is an amenable number.

52646428 is a deficient number, since it is larger than the sum of its proper divisors (39536684).

52646428 is a wasteful number, since it uses less digits than its factorization.

52646428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7412 (or 7410 counting only the distinct ones).

The product of its digits is 92160, while the sum is 37.

The square root of 52646428 is about 7255.7858292538. The cubic root of 52646428 is about 374.7914170403.

The spelling of 52646428 in words is "fifty-two million, six hundred forty-six thousand, four hundred twenty-eight".