51897355 has 8 divisors (see below), whose sum is σ = 62446032. Its totient is φ = 41405088.

The previous prime is 51897337. The next prime is 51897359. The reversal of 51897355 is 55379815.

51897355 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51897355 - 2⁵ = 51897323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51897359) 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 7 ways as a sum of consecutive naturals, for example, 12049 + ... + 15778.

It is an arithmetic number, because the mean of its divisors is an integer number (7805754).

Almost surely, 2^51897355 is an apocalyptic number.

51897355 is a deficient number, since it is larger than the sum of its proper divisors (10548677).

51897355 is a wasteful number, since it uses less digits than its factorization.

51897355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28205.

The product of its digits is 189000, while the sum is 43.

The square root of 51897355 is about 7203.9818850411. The cubic root of 51897355 is about 373.0053618532.

It can be divided in two parts, 5189 and 7355, that added together give a square (12544 = 112²).

The spelling of 51897355 in words is "fifty-one million, eight hundred ninety-seven thousand, three hundred fifty-five".