52947766 has 4 divisors (see below), whose sum is σ = 79421652. Its totient is φ = 26473882.

The previous prime is 52947761. The next prime is 52947767. The reversal of 52947766 is 66774925.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52947761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13236940 + ... + 13236943.

It is an arithmetic number, because the mean of its divisors is an integer number (19855413).

Almost surely, 2^52947766 is an apocalyptic number.

52947766 is a deficient number, since it is larger than the sum of its proper divisors (26473886).

52947766 is a wasteful number, since it uses less digits than its factorization.

52947766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26473885.

The product of its digits is 635040, while the sum is 46.

The square root of 52947766 is about 7276.5215590968. The cubic root of 52947766 is about 375.5051349680.

The spelling of 52947766 in words is "fifty-two million, nine hundred forty-seven thousand, seven hundred sixty-six".