51632461 has 8 divisors (see below), whose sum is σ = 52867584. Its totient is φ = 50403120.

The previous prime is 51632459. The next prime is 51632473. The reversal of 51632461 is 16423615.

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 51632461 - 2¹ = 51632459 is a prime.

It is a super-2 number, since 2×51632461² = 5331822057833042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51632431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20476 + ... + 22858.

It is an arithmetic number, because the mean of its divisors is an integer number (6608448).

Almost surely, 2^51632461 is an apocalyptic number.

It is an amenable number.

51632461 is a deficient number, since it is larger than the sum of its proper divisors (1235123).

51632461 is a wasteful number, since it uses less digits than its factorization.

51632461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2891.

The product of its digits is 4320, while the sum is 28.

The square root of 51632461 is about 7185.5731156255. The cubic root of 51632461 is about 372.3696488490.

The spelling of 51632461 in words is "fifty-one million, six hundred thirty-two thousand, four hundred sixty-one".