52097966 has 4 divisors (see below), whose sum is σ = 78146952. Its totient is φ = 26048982.

The previous prime is 52097963. The next prime is 52097971. The reversal of 52097966 is 66979025.

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

It is a super-2 number, since 2×52097966² = 5428396122674312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52097963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13024490 + ... + 13024493.

It is an arithmetic number, because the mean of its divisors is an integer number (19536738).

Almost surely, 2^52097966 is an apocalyptic number.

52097966 is a deficient number, since it is larger than the sum of its proper divisors (26048986).

52097966 is a wasteful number, since it uses less digits than its factorization.

52097966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26048985.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 52097966 is about 7217.8920745603. The cubic root of 52097966 is about 373.4853655527.

The spelling of 52097966 in words is "fifty-two million, ninety-seven thousand, nine hundred sixty-six".