52151218 has 32 divisors (see below), whose sum is σ = 92136960. Its totient is φ = 21677760.

The previous prime is 52151201. The next prime is 52151233. The reversal of 52151218 is 81215125.

It is a junction number, because it is equal to n+sod(n) for n = 52151192 and 52151201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67080 + ... + 67852.

It is an arithmetic number, because the mean of its divisors is an integer number (2879280).

Almost surely, 2^52151218 is an apocalyptic number.

52151218 is a deficient number, since it is larger than the sum of its proper divisors (39985742).

52151218 is a wasteful number, since it uses less digits than its factorization.

52151218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922.

The product of its digits is 800, while the sum is 25.

The square root of 52151218 is about 7221.5800210203. The cubic root of 52151218 is about 373.6125750620.

The spelling of 52151218 in words is "fifty-two million, one hundred fifty-one thousand, two hundred eighteen".