51457342 has 8 divisors (see below), whose sum is σ = 77430456. Its totient is φ = 25647192.

The previous prime is 51457319. The next prime is 51457349. The reversal of 51457342 is 24375415.

51457342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51457349) 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 3 ways as a sum of consecutive naturals, for example, 39948 + ... + 41215.

It is an arithmetic number, because the mean of its divisors is an integer number (9678807).

Almost surely, 2^51457342 is an apocalyptic number.

51457342 is a deficient number, since it is larger than the sum of its proper divisors (25973114).

51457342 is a wasteful number, since it uses less digits than its factorization.

51457342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81482.

The product of its digits is 16800, while the sum is 31.

The square root of 51457342 is about 7173.3773077958. The cubic root of 51457342 is about 371.9481900713.

The spelling of 51457342 in words is "fifty-one million, four hundred fifty-seven thousand, three hundred forty-two".