52197678 has 36 divisors (see below), whose sum is σ = 122470920. Its totient is φ = 16059888.

The previous prime is 52197671. The next prime is 52197679. The reversal of 52197678 is 87679125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52197671) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5538 + ... + 11621.

It is an arithmetic number, because the mean of its divisors is an integer number (3401970).

Almost surely, 2^52197678 is an apocalyptic number.

52197678 is an abundant number, since it is smaller than the sum of its proper divisors (70273242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52197678 is a wasteful number, since it uses less digits than its factorization.

52197678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17193 (or 17177 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 52197678 is about 7224.7960524848. The cubic root of 52197678 is about 373.7234889828.

The spelling of 52197678 in words is "fifty-two million, one hundred ninety-seven thousand, six hundred seventy-eight".