52666651 has 12 divisors (see below), whose sum is σ = 57101232. Its totient is φ = 48533904.

The previous prime is 52666637. The next prime is 52666667. The reversal of 52666651 is 15666625.

It is not a de Polignac number, because 52666651 - 2⁹ = 52666139 is a prime.

It is a super-2 number, since 2×52666651² = 5547552255111602, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 52666651.

It is not an unprimeable number, because it can be changed into a prime (52666631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11386 + ... + 15328.

It is an arithmetic number, because the mean of its divisors is an integer number (4758436).

Almost surely, 2^52666651 is an apocalyptic number.

52666651 is a deficient number, since it is larger than the sum of its proper divisors (4434581).

52666651 is a wasteful number, since it uses less digits than its factorization.

52666651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4018 (or 3999 counting only the distinct ones).

The product of its digits is 64800, while the sum is 37.

The square root of 52666651 is about 7257.1792729683. The cubic root of 52666651 is about 374.8394002675.

The spelling of 52666651 in words is "fifty-two million, six hundred sixty-six thousand, six hundred fifty-one".