53642766 has 8 divisors (see below), whose sum is σ = 107285544. Its totient is φ = 17880920.

The previous prime is 53642759. The next prime is 53642773. The reversal of 53642766 is 66724635.

It is an interprime number because it is at equal distance from previous prime (53642759) and next prime (53642773).

It is a sphenic number, since it is the product of 3 distinct primes.

53642766 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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, 4470225 + ... + 4470236.

It is an arithmetic number, because the mean of its divisors is an integer number (13410693).

Almost surely, 2^53642766 is an apocalyptic number.

53642766 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

53642766 is a wasteful number, since it uses less digits than its factorization.

53642766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8940466.

The product of its digits is 181440, while the sum is 39.

The square root of 53642766 is about 7324.1221999636. The cubic root of 53642766 is about 377.1409764353.

The spelling of 53642766 in words is "fifty-three million, six hundred forty-two thousand, seven hundred sixty-six".