51628001 has 4 divisors (see below), whose sum is σ = 52281600. Its totient is φ = 50974404.

The previous prime is 51627991. The next prime is 51628007. The reversal of 51628001 is 10082615.

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 not a de Polignac number, because 51628001 - 2⁶ = 51627937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51628007) 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, 326681 + ... + 326838.

It is an arithmetic number, because the mean of its divisors is an integer number (13070400).

Almost surely, 2^51628001 is an apocalyptic number.

It is an amenable number.

51628001 is a deficient number, since it is larger than the sum of its proper divisors (653599).

51628001 is an equidigital number, since it uses as much as digits as its factorization.

51628001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653598.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 51628001 is about 7185.2627648542. The cubic root of 51628001 is about 372.3589268056.

The spelling of 51628001 in words is "fifty-one million, six hundred twenty-eight thousand, one".