51475037 has 4 divisors (see below), whose sum is σ = 51517500. Its totient is φ = 51432576.

The previous prime is 51475027. The next prime is 51475043. The reversal of 51475037 is 73057415.

51475037 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.

It can be written as a sum of positive squares in 2 ways, for example, as 41809156 + 9665881 = 6466^2 + 3109^2 .

It is a cyclic number.

It is not a de Polignac number, because 51475037 - 2²² = 47280733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51474994 and 51475012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51475027) 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, 19358 + ... + 21855.

It is an arithmetic number, because the mean of its divisors is an integer number (12879375).

Almost surely, 2^51475037 is an apocalyptic number.

It is an amenable number.

51475037 is a deficient number, since it is larger than the sum of its proper divisors (42463).

51475037 is a wasteful number, since it uses less digits than its factorization.

51475037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42462.

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 51475037 is about 7174.6105817668. The cubic root of 51475037 is about 371.9908200032.

The spelling of 51475037 in words is "fifty-one million, four hundred seventy-five thousand, thirty-seven".