53494666 has 16 divisors (see below), whose sum is σ = 83274048. Its totient is φ = 25754400.

The previous prime is 53494657. The next prime is 53494667. The reversal of 53494666 is 66649435.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (53494667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1726 + ... + 10486.

It is an arithmetic number, because the mean of its divisors is an integer number (5204628).

Almost surely, 2^53494666 is an apocalyptic number.

53494666 is the 3910-th centered heptagonal number.

53494666 is a deficient number, since it is larger than the sum of its proper divisors (29779382).

53494666 is a wasteful number, since it uses less digits than its factorization.

53494666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8877.

The product of its digits is 466560, while the sum is 43.

The square root of 53494666 is about 7314.0047853416. The cubic root of 53494666 is about 376.7935791132.

The spelling of 53494666 in words is "fifty-three million, four hundred ninety-four thousand, six hundred sixty-six".