51632345 has 8 divisors (see below), whose sum is σ = 62181000. Its totient is φ = 41157760.

The previous prime is 51632327. The next prime is 51632351. The reversal of 51632345 is 54323615.

It can be written as a sum of positive squares in 4 ways, for example, as 1901641 + 49730704 = 1379^2 + 7052^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51632345 - 2⁸ = 51632089 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16970 + ... + 19779.

It is an arithmetic number, because the mean of its divisors is an integer number (7772625).

Almost surely, 2^51632345 is an apocalyptic number.

It is an amenable number.

51632345 is a deficient number, since it is larger than the sum of its proper divisors (10548655).

51632345 is a wasteful number, since it uses less digits than its factorization.

51632345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37035.

The product of its digits is 10800, while the sum is 29.

The square root of 51632345 is about 7185.5650438918. The cubic root of 51632345 is about 372.3693699875.

The spelling of 51632345 in words is "fifty-one million, six hundred thirty-two thousand, three hundred forty-five".