51072635 has 4 divisors (see below), whose sum is σ = 61287168. Its totient is φ = 40858104.

The previous prime is 51072613. The next prime is 51072649. The reversal of 51072635 is 53627015.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51072635 - 2¹⁰ = 51071611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51072598 and 51072607.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5107259 + ... + 5107268.

It is an arithmetic number, because the mean of its divisors is an integer number (15321792).

Almost surely, 2^51072635 is an apocalyptic number.

51072635 is a deficient number, since it is larger than the sum of its proper divisors (10214533).

51072635 is a wasteful number, since it uses less digits than its factorization.

51072635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10214532.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 51072635 is about 7146.5120863257. The cubic root of 51072635 is about 371.0189468749.

The spelling of 51072635 in words is "fifty-one million, seventy-two thousand, six hundred thirty-five".