51039342 has 32 divisors (see below), whose sum is σ = 116192160. Its totient is φ = 16597440.

The previous prime is 51039341. The next prime is 51039343. The reversal of 51039342 is 24393015.

51039342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (51039341) and next prime (51039343).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51039341) 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 15 ways as a sum of consecutive naturals, for example, 9313 + ... + 13740.

It is an arithmetic number, because the mean of its divisors is an integer number (3631005).

Almost surely, 2^51039342 is an apocalyptic number.

51039342 is an abundant number, since it is smaller than the sum of its proper divisors (65152818).

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

51039342 is a wasteful number, since it uses less digits than its factorization.

51039342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23105 (or 23099 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 51039342 is about 7144.1823884893. The cubic root of 51039342 is about 370.9383099622.

The spelling of 51039342 in words is "fifty-one million, thirty-nine thousand, three hundred forty-two".