52251212 has 24 divisors (see below), whose sum is σ = 99195600. Its totient is φ = 23939136.

The previous prime is 52251211. The next prime is 52251253. The reversal of 52251212 is 21215225.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (52251211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3614 + ... + 10842.

It is an arithmetic number, because the mean of its divisors is an integer number (4133150).

Almost surely, 2^52251212 is an apocalyptic number.

52251212 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is a pronic number, being equal to 7228×7229.

It is an amenable number.

52251212 is a deficient number, since it is larger than the sum of its proper divisors (46944388).

52251212 is a wasteful number, since it uses less digits than its factorization.

52251212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7385 (or 7383 counting only the distinct ones).

The product of its digits is 400, while the sum is 20.

The square root of 52251212 is about 7228.4999827073. The cubic root of 52251212 is about 373.8512090795.

Adding to 52251212 its reverse (21215225), we get a palindrome (73466437).

The spelling of 52251212 in words is "fifty-two million, two hundred fifty-one thousand, two hundred twelve".