51567012 has 216 divisors, whose sum is σ = 167311872. Its totient is φ = 13305600.

The previous prime is 51566993. The next prime is 51567029. The reversal of 51567012 is 21076515.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1257712 + ... + 1257752.

It is an arithmetic number, because the mean of its divisors is an integer number (774592).

Almost surely, 2^51567012 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 51567012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83655936).

51567012 is an abundant number, since it is smaller than the sum of its proper divisors (115744860).

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

51567012 is a wasteful number, since it uses less digits than its factorization.

51567012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 51567012 is about 7181.0174766533. The cubic root of 51567012 is about 372.2122444724.

The spelling of 51567012 in words is "fifty-one million, five hundred sixty-seven thousand, twelve".