51825739 has 16 divisors (see below), whose sum is σ = 62042112. Its totient is φ = 42327648.

The previous prime is 51825713. The next prime is 51825743. The reversal of 51825739 is 93752815.

51825739 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 51825739 - 2¹¹ = 51823691 is a prime.

It is a super-2 number, since 2×51825739² = 5371814445792242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51825799) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 59622 + ... + 60484.

It is an arithmetic number, because the mean of its divisors is an integer number (3877632).

Almost surely, 2^51825739 is an apocalyptic number.

51825739 is a deficient number, since it is larger than the sum of its proper divisors (10216373).

51825739 is a wasteful number, since it uses less digits than its factorization.

51825739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266.

The product of its digits is 75600, while the sum is 40.

The square root of 51825739 is about 7199.0095846582. The cubic root of 51825739 is about 372.8337060333.

The spelling of 51825739 in words is "fifty-one million, eight hundred twenty-five thousand, seven hundred thirty-nine".