51631652 has 24 divisors (see below), whose sum is σ = 96044256. Its totient is φ = 24202368.

The previous prime is 51631651. The next prime is 51631661. The reversal of 51631652 is 25613615.

It is not an unprimeable number, because it can be changed into a prime (51631651) 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, 17903 + ... + 20585.

It is an arithmetic number, because the mean of its divisors is an integer number (4001844).

Almost surely, 2^51631652 is an apocalyptic number.

It is an amenable number.

51631652 is a deficient number, since it is larger than the sum of its proper divisors (44412604).

51631652 is a wasteful number, since it uses less digits than its factorization.

51631652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2987 (or 2985 counting only the distinct ones).

The product of its digits is 5400, while the sum is 29.

The square root of 51631652 is about 7185.5168220525. The cubic root of 51631652 is about 372.3677040219.

The spelling of 51631652 in words is "fifty-one million, six hundred thirty-one thousand, six hundred fifty-two".