51134020 has 48 divisors (see below), whose sum is σ = 123338880. Its totient is φ = 17443584.

The previous prime is 51133981. The next prime is 51134033. The reversal of 51134020 is 2043115.

It is a super-2 number, since 2×51134020² = 5229376002720800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51133985 and 51134003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30976 + ... + 32584.

It is an arithmetic number, because the mean of its divisors is an integer number (2569560).

Almost surely, 2^51134020 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 51134020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61669440).

51134020 is an abundant number, since it is smaller than the sum of its proper divisors (72204860).

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

51134020 is a wasteful number, since it uses less digits than its factorization.

51134020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852 (or 1850 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 51134020 is about 7150.8055490273. The cubic root of 51134020 is about 371.1675318566.

Adding to 51134020 its reverse (2043115), we get a palindrome (53177135).

The spelling of 51134020 in words is "fifty-one million, one hundred thirty-four thousand, twenty".