51100160 has 40 divisors (see below), whose sum is σ = 122526756. Its totient is φ = 20439040.

The previous prime is 51100157. The next prime is 51100169. The reversal of 51100160 is 6100115.

It can be written as a sum of positive squares in 2 ways, for example, as 49336576 + 1763584 = 7024^2 + 1328^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×51100160² = 5222452704051200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51100169) 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, 7421 + ... + 12540.

Almost surely, 2^51100160 is an apocalyptic number.

It is an amenable number.

51100160 is an abundant number, since it is smaller than the sum of its proper divisors (71426596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51100160 is an equidigital number, since it uses as much as digits as its factorization.

51100160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19984 (or 19968 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 51100160 is about 7148.4375915301. The cubic root of 51100160 is about 371.0855870138.

Adding to 51100160 its reverse (6100115), we get a palindrome (57200275).

The spelling of 51100160 in words is "fifty-one million, one hundred thousand, one hundred sixty".