51544632 has 16 divisors (see below), whose sum is σ = 128861640. Its totient is φ = 17181536.

The previous prime is 51544627. The next prime is 51544639. The reversal of 51544632 is 23644515.

It is a self number, because there is not a number n which added to its sum of digits gives 51544632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51544639) 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, 1073823 + ... + 1073870.

Almost surely, 2^51544632 is an apocalyptic number.

It is an amenable number.

51544632 is an abundant number, since it is smaller than the sum of its proper divisors (77317008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51544632 is a wasteful number, since it uses less digits than its factorization.

51544632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2147702 (or 2147698 counting only the distinct ones).

The product of its digits is 14400, while the sum is 30.

The square root of 51544632 is about 7179.4590325456. The cubic root of 51544632 is about 372.1583901762.

The spelling of 51544632 in words is "fifty-one million, five hundred forty-four thousand, six hundred thirty-two".