51295212 has 54 divisors (see below), whose sum is σ = 136881108. Its totient is φ = 16194384.

The previous prime is 51295207. The next prime is 51295213. The reversal of 51295212 is 21259215.

It is not an unprimeable number, because it can be changed into a prime (51295213) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 11023 + ... + 14969.

Almost surely, 2^51295212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51295212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68440554).

51295212 is an abundant number, since it is smaller than the sum of its proper divisors (85585896).

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

51295212 is a wasteful number, since it uses less digits than its factorization.

51295212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3995 (or 3971 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 51295212 is about 7162.0675785698. The cubic root of 51295212 is about 371.5571386143.

The spelling of 51295212 in words is "fifty-one million, two hundred ninety-five thousand, two hundred twelve".