51622601 has 4 divisors (see below), whose sum is σ = 54339600. Its totient is φ = 48905604.

The previous prime is 51622577. The next prime is 51622621. The reversal of 51622601 is 10622615.

51622601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51622601 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51622621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1358471 + ... + 1358508.

It is an arithmetic number, because the mean of its divisors is an integer number (13584900).

Almost surely, 2^51622601 is an apocalyptic number.

It is an amenable number.

51622601 is a deficient number, since it is larger than the sum of its proper divisors (2716999).

51622601 is a wasteful number, since it uses less digits than its factorization.

51622601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2716998.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 51622601 is about 7184.8869858892. The cubic root of 51622601 is about 372.3459441330.

The spelling of 51622601 in words is "fifty-one million, six hundred twenty-two thousand, six hundred one".