51025626 has 56 divisors (see below), whose sum is σ = 116470080. Its totient is φ = 16755336.

The previous prime is 51025603. The next prime is 51025631. The reversal of 51025626 is 62652015.

51025626 is a `hidden beast` number, since 5 + 10 + 25 + 626 = 666.

51025626 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51025626² = 5207229017383752, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 51025626.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 114961 + ... + 115403.

Almost surely, 2^51025626 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51025626, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58235040).

51025626 is an abundant number, since it is smaller than the sum of its proper divisors (65444454).

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

51025626 is an equidigital number, since it uses as much as digits as its factorization.

51025626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542 (or 527 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 51025626 is about 7143.2223820906. Note that the first 3 decimals coincide. The cubic root of 51025626 is about 370.9050790892.

The spelling of 51025626 in words is "fifty-one million, twenty-five thousand, six hundred twenty-six".