51880830 has 32 divisors (see below), whose sum is σ = 131068800. Its totient is φ = 13106592.

The previous prime is 51880819. The next prime is 51880831. The reversal of 51880830 is 3808815.

It is a Curzon number.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 51880791 and 51880800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51880831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44940 + ... + 46079.

It is an arithmetic number, because the mean of its divisors is an integer number (4095900).

Almost surely, 2^51880830 is an apocalyptic number.

51880830 is an abundant number, since it is smaller than the sum of its proper divisors (79187970).

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

51880830 is a wasteful number, since it uses less digits than its factorization.

51880830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91048.

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 51880830 is about 7202.8348585817. The cubic root of 51880830 is about 372.9657672345.

The spelling of 51880830 in words is "fifty-one million, eight hundred eighty thousand, eight hundred thirty".