52155212 has 12 divisors (see below), whose sum is σ = 92634360. Its totient is φ = 25688256.

The previous prime is 52155211. The next prime is 52155223. The reversal of 52155212 is 21255125.

It is a super-2 number, since 2×52155212² = 5440332277529888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52155211) 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, 97037 + ... + 97572.

It is an arithmetic number, because the mean of its divisors is an integer number (7719530).

Almost surely, 2^52155212 is an apocalyptic number.

It is an amenable number.

52155212 is a deficient number, since it is larger than the sum of its proper divisors (40479148).

52155212 is a wasteful number, since it uses less digits than its factorization.

52155212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194680 (or 194678 counting only the distinct ones).

The product of its digits is 1000, while the sum is 23.

The square root of 52155212 is about 7221.8565480076. The cubic root of 52155212 is about 373.6221125224.

The spelling of 52155212 in words is "fifty-two million, one hundred fifty-five thousand, two hundred twelve".