51628157 has 8 divisors (see below), whose sum is σ = 59087616. Its totient is φ = 44189712.

The previous prime is 51628141. The next prime is 51628163. The reversal of 51628157 is 75182615.

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

It is not a de Polignac number, because 51628157 - 2⁴ = 51628141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51628117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428 + ... + 10170.

It is an arithmetic number, because the mean of its divisors is an integer number (7385952).

Almost surely, 2^51628157 is an apocalyptic number.

It is an amenable number.

51628157 is a deficient number, since it is larger than the sum of its proper divisors (7459459).

51628157 is an equidigital number, since it uses as much as digits as its factorization.

51628157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10507.

The product of its digits is 16800, while the sum is 35.

The square root of 51628157 is about 7185.2736203989. The cubic root of 51628157 is about 372.3593018472.

The spelling of 51628157 in words is "fifty-one million, six hundred twenty-eight thousand, one hundred fifty-seven".