51225037 has 4 divisors (see below), whose sum is σ = 51239356. Its totient is φ = 51210720.

The previous prime is 51225023. The next prime is 51225059. The reversal of 51225037 is 73052215.

51225037 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4726276 + 46498761 = 2174^2 + 6819^2 .

It is a cyclic number.

It is not a de Polignac number, because 51225037 - 2²³ = 42836429 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 (51225067) 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 3 ways as a sum of consecutive naturals, for example, 3337 + ... + 10657.

It is an arithmetic number, because the mean of its divisors is an integer number (12809839).

Almost surely, 2^51225037 is an apocalyptic number.

It is an amenable number.

51225037 is a deficient number, since it is larger than the sum of its proper divisors (14319).

51225037 is an equidigital number, since it uses as much as digits as its factorization.

51225037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14318.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 51225037 is about 7157.1668277329. The cubic root of 51225037 is about 371.3876236276.

The spelling of 51225037 in words is "fifty-one million, two hundred twenty-five thousand, thirty-seven".