51410421 has 12 divisors (see below), whose sum is σ = 74370348. Its totient is φ = 34222464.

The previous prime is 51410407. The next prime is 51410453. The reversal of 51410421 is 12401415.

It can be written as a sum of positive squares in 2 ways, for example, as 50211396 + 1199025 = 7086^2 + 1095^2 .

It is not a de Polignac number, because 51410421 - 2⁶ = 51410357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51410394 and 51410403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51410321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2701 + ... + 10493.

It is an arithmetic number, because the mean of its divisors is an integer number (6197529).

Almost surely, 2^51410421 is an apocalyptic number.

It is an amenable number.

51410421 is a deficient number, since it is larger than the sum of its proper divisors (22959927).

51410421 is a wasteful number, since it uses less digits than its factorization.

51410421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8532 (or 8529 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 51410421 is about 7170.1060661611. The cubic root of 51410421 is about 371.8351029485.

Adding to 51410421 its reverse (12401415), we get a palindrome (63811836).

The spelling of 51410421 in words is "fifty-one million, four hundred ten thousand, four hundred twenty-one".