51370895 has 4 divisors (see below), whose sum is σ = 61645080. Its totient is φ = 41096712.

The previous prime is 51370867. The next prime is 51370897. The reversal of 51370895 is 59807315.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51370895 - 2⁸ = 51370639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51370897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5137085 + ... + 5137094.

It is an arithmetic number, because the mean of its divisors is an integer number (15411270).

Almost surely, 2^51370895 is an apocalyptic number.

51370895 is a deficient number, since it is larger than the sum of its proper divisors (10274185).

51370895 is a wasteful number, since it uses less digits than its factorization.

51370895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10274184.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 51370895 is about 7167.3492310616. The cubic root of 51370895 is about 371.7397855521.

It can be divided in two parts, 513708 and 95, that multiplied together give a triangular number (48802260 = T₉₈₇₉).

The spelling of 51370895 in words is "fifty-one million, three hundred seventy thousand, eight hundred ninety-five".