51064634 has 8 divisors (see below), whose sum is σ = 81102708. Its totient is φ = 24030400.

The previous prime is 51064631. The next prime is 51064649. The reversal of 51064634 is 43646015.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 50367409 + 697225 = 7097^2 + 835^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 51064597 and 51064606.

It is not an unprimeable number, because it can be changed into a prime (51064631) 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, 750917 + ... + 750984.

Almost surely, 2^51064634 is an apocalyptic number.

51064634 is a deficient number, since it is larger than the sum of its proper divisors (30038074).

51064634 is a wasteful number, since it uses less digits than its factorization.

51064634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501920.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 51064634 is about 7145.9522808370. The cubic root of 51064634 is about 370.9995713482. Note that the first 3 decimals are identical.

The spelling of 51064634 in words is "fifty-one million, sixty-four thousand, six hundred thirty-four".