52621418 has 8 divisors (see below), whose sum is σ = 79004160. Its totient is φ = 26286700.

The previous prime is 52621417. The next prime is 52621441. The reversal of 52621418 is 81412625.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (52621417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9128 + ... + 13731.

It is an arithmetic number, because the mean of its divisors is an integer number (9875520).

Almost surely, 2^52621418 is an apocalyptic number.

52621418 is a deficient number, since it is larger than the sum of its proper divisors (26382742).

52621418 is a wasteful number, since it uses less digits than its factorization.

52621418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24012.

The product of its digits is 3840, while the sum is 29.

The square root of 52621418 is about 7254.0621723280. The cubic root of 52621418 is about 374.7320586729.

The spelling of 52621418 in words is "fifty-two million, six hundred twenty-one thousand, four hundred eighteen".