51201632 has 12 divisors (see below), whose sum is σ = 100803276. Its totient is φ = 25600800.

The previous prime is 51201613. The next prime is 51201643. The reversal of 51201632 is 23610215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 799994 + ... + 800057.

It is an arithmetic number, because the mean of its divisors is an integer number (8400273).

Almost surely, 2^51201632 is an apocalyptic number.

It is an amenable number.

51201632 is a deficient number, since it is larger than the sum of its proper divisors (49601644).

51201632 is a wasteful number, since it uses less digits than its factorization.

51201632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600061 (or 1600053 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 51201632 is about 7155.5315665574. The cubic root of 51201632 is about 371.3310519976.

Adding to 51201632 its reverse (23610215), we get a palindrome (74811847).

The spelling of 51201632 in words is "fifty-one million, two hundred one thousand, six hundred thirty-two".