51002160 has 80 divisors (see below), whose sum is σ = 172488960. Its totient is φ = 12363520.

The previous prime is 51002153. The next prime is 51002167. The reversal of 51002160 is 6120015.

It is an interprime number because it is at equal distance from previous prime (51002153) and next prime (51002167).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51002167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7020 + ... + 12299.

It is an arithmetic number, because the mean of its divisors is an integer number (2156112).

Almost surely, 2^51002160 is an apocalyptic number.

It is an amenable number.

51002160 is an abundant number, since it is smaller than the sum of its proper divisors (121486800).

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

51002160 is a wasteful number, since it uses less digits than its factorization.

51002160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19346 (or 19340 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 51002160 is about 7141.5796571907. The cubic root of 51002160 is about 370.8482122830.

Adding to 51002160 its reverse (6120015), we get a palindrome (57122175).

It can be divided in two parts, 5100 and 2160, that added together give a triangular number (7260 = T₁₂₀).

The spelling of 51002160 in words is "fifty-one million, two thousand, one hundred sixty".