51415061 has 4 divisors (see below), whose sum is σ = 51820032. Its totient is φ = 51010092.

The previous prime is 51415043. The next prime is 51415087. The reversal of 51415061 is 16051415.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16051415 = 5 ⋅3210283.

It is a cyclic number.

It is not a de Polignac number, because 51415061 - 2⁶ = 51414997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51415561) 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, 202295 + ... + 202548.

It is an arithmetic number, because the mean of its divisors is an integer number (12955008).

Almost surely, 2^51415061 is an apocalyptic number.

It is an amenable number.

51415061 is a deficient number, since it is larger than the sum of its proper divisors (404971).

51415061 is a wasteful number, since it uses less digits than its factorization.

51415061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404970.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 51415061 is about 7170.4296245065. The cubic root of 51415061 is about 371.8462891564.

Adding to 51415061 its reverse (16051415), we get a palindrome (67466476).

The spelling of 51415061 in words is "fifty-one million, four hundred fifteen thousand, sixty-one".