52421012 has 24 divisors (see below), whose sum is σ = 105827904. Its totient is φ = 22254912.

The previous prime is 52421011. The next prime is 52421029. The reversal of 52421012 is 21012425.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52421011) 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, 5753 + ... + 11744.

It is an arithmetic number, because the mean of its divisors is an integer number (4409496).

Almost surely, 2^52421012 is an apocalyptic number.

It is an amenable number.

52421012 is an abundant number, since it is smaller than the sum of its proper divisors (53406892).

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

52421012 is a wasteful number, since it uses less digits than its factorization.

52421012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17615 (or 17613 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 52421012 is about 7240.2356315247. The cubic root of 52421012 is about 374.2557374689.

Adding to 52421012 its reverse (21012425), we get a palindrome (73433437).

The spelling of 52421012 in words is "fifty-two million, four hundred twenty-one thousand, twelve".