51670037 has 4 divisors (see below), whose sum is σ = 52397856. Its totient is φ = 50942220.

The previous prime is 51670027. The next prime is 51670043. The reversal of 51670037 is 73007615.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73007615 = 5 ⋅14601523.

It is a cyclic number.

It is not a de Polignac number, because 51670037 - 2⁶ = 51669973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51669991 and 51670009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51670007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363803 + ... + 363944.

It is an arithmetic number, because the mean of its divisors is an integer number (13099464).

Almost surely, 2^51670037 is an apocalyptic number.

It is an amenable number.

51670037 is a deficient number, since it is larger than the sum of its proper divisors (727819).

51670037 is an equidigital number, since it uses as much as digits as its factorization.

51670037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727818.

The product of its (nonzero) digits is 4410, while the sum is 29.

The square root of 51670037 is about 7188.1873236582. The cubic root of 51670037 is about 372.4599587607.

The spelling of 51670037 in words is "fifty-one million, six hundred seventy thousand, thirty-seven".