51406525 has 24 divisors (see below), whose sum is σ = 66495744. Its totient is φ = 39379200.

The previous prime is 51406519. The next prime is 51406547. The reversal of 51406525 is 52560415.

51406525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51406525 - 2⁹ = 51406013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51406493 and 51406502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87282 + ... + 87868.

It is an arithmetic number, because the mean of its divisors is an integer number (2770656).

Almost surely, 2^51406525 is an apocalyptic number.

It is an amenable number.

51406525 is a deficient number, since it is larger than the sum of its proper divisors (15089219).

51406525 is a wasteful number, since it uses less digits than its factorization.

51406525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741 (or 736 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 51406525 is about 7169.8343774455. The cubic root of 51406525 is about 371.8257098713.

The spelling of 51406525 in words is "fifty-one million, four hundred six thousand, five hundred twenty-five".