51534825 has 12 divisors (see below), whose sum is σ = 85204368. Its totient is φ = 27485200.

The previous prime is 51534811. The next prime is 51534829. The reversal of 51534825 is 52843515.

It is not a de Polignac number, because 51534825 - 2⁶ = 51534761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51534829) 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, 343491 + ... + 343640.

It is an arithmetic number, because the mean of its divisors is an integer number (7100364).

Almost surely, 2^51534825 is an apocalyptic number.

It is an amenable number.

51534825 is a deficient number, since it is larger than the sum of its proper divisors (33669543).

51534825 is a wasteful number, since it uses less digits than its factorization.

51534825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687144 (or 687139 counting only the distinct ones).

The product of its digits is 24000, while the sum is 33.

The square root of 51534825 is about 7178.7760098780. The cubic root of 51534825 is about 372.1347861093.

The spelling of 51534825 in words is "fifty-one million, five hundred thirty-four thousand, eight hundred twenty-five".