53069966 has 4 divisors (see below), whose sum is σ = 79604952. Its totient is φ = 26534982.

The previous prime is 53069911. The next prime is 53069977. The reversal of 53069966 is 66996035.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66996035 = 5 ⋅13399207.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13267490 + ... + 13267493.

It is an arithmetic number, because the mean of its divisors is an integer number (19901238).

Almost surely, 2^53069966 is an apocalyptic number.

53069966 is a deficient number, since it is larger than the sum of its proper divisors (26534986).

53069966 is a wasteful number, since it uses less digits than its factorization.

53069966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26534985.

The product of its (nonzero) digits is 262440, while the sum is 44.

The square root of 53069966 is about 7284.9135890551. The cubic root of 53069966 is about 375.7937934891.

The spelling of 53069966 in words is "fifty-three million, sixty-nine thousand, nine hundred sixty-six".