51667080 has 256 divisors, whose sum is σ = 182476800. Its totient is φ = 11612160.

The previous prime is 51667079. The next prime is 51667087. The reversal of 51667080 is 8076615.

It is not an unprimeable number, because it can be changed into a prime (51667087) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1201539 + ... + 1201581.

It is an arithmetic number, because the mean of its divisors is an integer number (712800).

Almost surely, 2^51667080 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 51667080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91238400).

51667080 is an abundant number, since it is smaller than the sum of its proper divisors (130809720).

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

51667080 is a wasteful number, since it uses less digits than its factorization.

51667080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 51667080 is about 7187.9816360366. The cubic root of 51667080 is about 372.4528535138.

It can be divided in two parts, 5166 and 7080, that added together give a triangular number (12246 = T₁₅₆).

The spelling of 51667080 in words is "fifty-one million, six hundred sixty-seven thousand, eighty".