51461628 has 24 divisors (see below), whose sum is σ = 121871232. Its totient is φ = 16897584.

The previous prime is 51461623. The next prime is 51461651. The reversal of 51461628 is 82616415.

51461628 is nontrivially palindromic in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51461623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31200 + ... + 32807.

It is an arithmetic number, because the mean of its divisors is an integer number (5077968).

Almost surely, 2^51461628 is an apocalyptic number.

It is an amenable number.

51461628 is an abundant number, since it is smaller than the sum of its proper divisors (70409604).

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

51461628 is a wasteful number, since it uses less digits than its factorization.

51461628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64081 (or 64079 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 51461628 is about 7173.6760450971. The cubic root of 51461628 is about 371.9585165905.

The spelling of 51461628 in words is "fifty-one million, four hundred sixty-one thousand, six hundred twenty-eight".