51206176 has 108 divisors (see below), whose sum is σ = 125677818. Its totient is φ = 20471808.

The previous prime is 51206173. The next prime is 51206179. The reversal of 51206176 is 67160215.

It is an interprime number because it is at equal distance from previous prime (51206173) and next prime (51206179).

It can be written as a sum of positive squares in 3 ways, for example, as 42562576 + 8643600 = 6524^2 + 2940^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51206173) 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, 453096 + ... + 453208.

Almost surely, 2^51206176 is an apocalyptic number.

51206176 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51206176, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62838909).

51206176 is an abundant number, since it is smaller than the sum of its proper divisors (74471642).

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

51206176 is a wasteful number, since it uses less digits than its factorization.

51206176 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 51206176 is about 7155.8490761055. The cubic root of 51206176 is about 371.3420365328.

The spelling of 51206176 in words is "fifty-one million, two hundred six thousand, one hundred seventy-six".