51002616 has 32 divisors (see below), whose sum is σ = 145722240. Its totient is φ = 14572128.

The previous prime is 51002603. The next prime is 51002617. The reversal of 51002616 is 61620015.

It is a happy number.

51002616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 51002592 and 51002601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51002617) 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 7 ways as a sum of consecutive naturals, for example, 151626 + ... + 151961.

It is an arithmetic number, because the mean of its divisors is an integer number (4553820).

Almost surely, 2^51002616 is an apocalyptic number.

51002616 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

51002616 is an abundant number, since it is smaller than the sum of its proper divisors (94719624).

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

51002616 is a wasteful number, since it uses less digits than its factorization.

51002616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303603 (or 303599 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 51002616 is about 7141.6115828292. The cubic root of 51002616 is about 370.8493175060.

The spelling of 51002616 in words is "fifty-one million, two thousand, six hundred sixteen".