51353087 has 4 divisors (see below), whose sum is σ = 51368856. Its totient is φ = 51337320.

The previous prime is 51353083. The next prime is 51353123. The reversal of 51353087 is 78035315.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78035315 = 5 ⋅15607063.

It is a cyclic number.

It is not a de Polignac number, because 51353087 - 2² = 51353083 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 (51353083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 989 + ... + 10182.

It is an arithmetic number, because the mean of its divisors is an integer number (12842214).

Almost surely, 2^51353087 is an apocalyptic number.

51353087 is a deficient number, since it is larger than the sum of its proper divisors (15769).

51353087 is a wasteful number, since it uses less digits than its factorization.

51353087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15768.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 51353087 is about 7166.1068230944. The cubic root of 51353087 is about 371.6968253818.

It can be divided in two parts, 5135308 and 7, that added together give a palindrome (5135315).

The spelling of 51353087 in words is "fifty-one million, three hundred fifty-three thousand, eighty-seven".