51633395 has 16 divisors (see below), whose sum is σ = 68872032. Its totient is φ = 36840960.

The previous prime is 51633377. The next prime is 51633397. The reversal of 51633395 is 59333615.

It is not a de Polignac number, because 51633395 - 2²⁰ = 50584819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51633397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5942 + ... + 11771.

It is an arithmetic number, because the mean of its divisors is an integer number (4304502).

Almost surely, 2^51633395 is an apocalyptic number.

51633395 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51633395 is a deficient number, since it is larger than the sum of its proper divisors (17238637).

51633395 is a wasteful number, since it uses less digits than its factorization.

51633395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17782.

The product of its digits is 36450, while the sum is 35.

The square root of 51633395 is about 7185.6381066681. The cubic root of 51633395 is about 372.3718941494.

It can be divided in two parts, 5163 and 3395, that added together give a palindrome (8558).

The spelling of 51633395 in words is "fifty-one million, six hundred thirty-three thousand, three hundred ninety-five".