51420126 has 8 divisors (see below), whose sum is σ = 102840264. Its totient is φ = 17140040.

The previous prime is 51420119. The next prime is 51420139. The reversal of 51420126 is 62102415.

It is a sphenic number, since it is the product of 3 distinct primes.

51420126 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4285005 + ... + 4285016.

It is an arithmetic number, because the mean of its divisors is an integer number (12855033).

Almost surely, 2^51420126 is an apocalyptic number.

51420126 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51420126 is a wasteful number, since it uses less digits than its factorization.

51420126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8570026.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 51420126 is about 7170.7828024561. The cubic root of 51420126 is about 371.8584991949.

The spelling of 51420126 in words is "fifty-one million, four hundred twenty thousand, one hundred twenty-six".