51282895 has 4 divisors (see below), whose sum is σ = 61539480. Its totient is φ = 41026312.

The previous prime is 51282877. The next prime is 51282899. The reversal of 51282895 is 59828215.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 59828215 = 5 ⋅11965643.

It is a cyclic number.

It is not a de Polignac number, because 51282895 - 2⁹ = 51282383 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51282899) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5128285 + ... + 5128294.

It is an arithmetic number, because the mean of its divisors is an integer number (15384870).

Almost surely, 2^51282895 is an apocalyptic number.

51282895 is a deficient number, since it is larger than the sum of its proper divisors (10256585).

51282895 is a wasteful number, since it uses less digits than its factorization.

51282895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10256584.

The product of its digits is 57600, while the sum is 40.

The square root of 51282895 is about 7161.2076495519. The cubic root of 51282895 is about 371.5273968155.

The spelling of 51282895 in words is "fifty-one million, two hundred eighty-two thousand, eight hundred ninety-five".