51632253 has 12 divisors (see below), whose sum is σ = 78505440. Its totient is φ = 32609736.

The previous prime is 51632249. The next prime is 51632261. The reversal of 51632253 is 35223615.

51632253 is a `hidden beast` number, since 5 + 1 + 632 + 25 + 3 = 666.

It is not a de Polignac number, because 51632253 - 2² = 51632249 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51632153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150801 + ... + 151142.

It is an arithmetic number, because the mean of its divisors is an integer number (6542120).

Almost surely, 2^51632253 is an apocalyptic number.

It is an amenable number.

51632253 is a deficient number, since it is larger than the sum of its proper divisors (26873187).

51632253 is a wasteful number, since it uses less digits than its factorization.

51632253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301968 (or 301965 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 51632253 is about 7185.5586421655. The cubic root of 51632253 is about 372.3691488212.

Adding to 51632253 its reverse (35223615), we get a palindrome (86855868).

The spelling of 51632253 in words is "fifty-one million, six hundred thirty-two thousand, two hundred fifty-three".