51476621 has 16 divisors (see below), whose sum is σ = 60652800. Its totient is φ = 42776448.

The previous prime is 51476617. The next prime is 51476627. The reversal of 51476621 is 12667415.

It is a cyclic number.

It is not a de Polignac number, because 51476621 - 2² = 51476617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51476627) 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, 32240 + ... + 33798.

It is an arithmetic number, because the mean of its divisors is an integer number (3790800).

Almost surely, 2^51476621 is an apocalyptic number.

It is an amenable number.

51476621 is a deficient number, since it is larger than the sum of its proper divisors (9176179).

51476621 is a wasteful number, since it uses less digits than its factorization.

51476621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1708.

The product of its digits is 10080, while the sum is 32.

The square root of 51476621 is about 7174.7209701841. The cubic root of 51476621 is about 371.9946356223.

The spelling of 51476621 in words is "fifty-one million, four hundred seventy-six thousand, six hundred twenty-one".