51014521 has 4 divisors (see below), whose sum is σ = 51061072. Its totient is φ = 50967972.

The previous prime is 51014479. The next prime is 51014543. The reversal of 51014521 is 12541015.

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: 12541015 = 5 ⋅2508203.

It is a cyclic number.

It is not a de Polignac number, because 51014521 - 2²⁵ = 17460089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51014581) 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, 21591 + ... + 23836.

It is an arithmetic number, because the mean of its divisors is an integer number (12765268).

Almost surely, 2^51014521 is an apocalyptic number.

It is an amenable number.

51014521 is a deficient number, since it is larger than the sum of its proper divisors (46551).

51014521 is a wasteful number, since it uses less digits than its factorization.

51014521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46550.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 51014521 is about 7142.4450295400. The cubic root of 51014521 is about 370.8781697362.

Adding to 51014521 its reverse (12541015), we get a palindrome (63555536).

The spelling of 51014521 in words is "fifty-one million, fourteen thousand, five hundred twenty-one".