51424461 has 24 divisors (see below), whose sum is σ = 81375840. Its totient is φ = 31034400.

The previous prime is 51424427. The next prime is 51424523. The reversal of 51424461 is 16442415.

It is not a de Polignac number, because 51424461 - 2⁶ = 51424397 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51424411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25666 + ... + 27596.

It is an arithmetic number, because the mean of its divisors is an integer number (3390660).

Almost surely, 2^51424461 is an apocalyptic number.

It is an amenable number.

51424461 is a deficient number, since it is larger than the sum of its proper divisors (29951379).

51424461 is a wasteful number, since it uses less digits than its factorization.

51424461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2217 (or 2214 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 51424461 is about 7171.0850643400. The cubic root of 51424461 is about 371.8689488082.

Adding to 51424461 its reverse (16442415), we get a palindrome (67866876).

The spelling of 51424461 in words is "fifty-one million, four hundred twenty-four thousand, four hundred sixty-one".