51414641 has 4 divisors (see below), whose sum is σ = 51454884. Its totient is φ = 51374400.

The previous prime is 51414631. The next prime is 51414653. The reversal of 51414641 is 14641415.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14641415 = 5 ⋅2928283.

It can be written as a sum of positive squares in 2 ways, for example, as 18879025 + 32535616 = 4345^2 + 5704^2 .

It is a cyclic number.

It is not a de Polignac number, because 51414641 - 2⁶ = 51414577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 51414641.

It is not an unprimeable number, because it can be changed into a prime (51414631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18140 + ... + 20781.

It is an arithmetic number, because the mean of its divisors is an integer number (12863721).

Almost surely, 2^51414641 is an apocalyptic number.

It is an amenable number.

51414641 is a deficient number, since it is larger than the sum of its proper divisors (40243).

51414641 is a wasteful number, since it uses less digits than its factorization.

51414641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40242.

The product of its digits is 1920, while the sum is 26.

The square root of 51414641 is about 7170.4003374986. The cubic root of 51414641 is about 371.8452766395.

The spelling of 51414641 in words is "fifty-one million, four hundred fourteen thousand, six hundred forty-one".