51257346 has 32 divisors (see below), whose sum is σ = 124053120. Its totient is φ = 13783296.

The previous prime is 51257293. The next prime is 51257347. The reversal of 51257346 is 64375215.

It is not an unprimeable number, because it can be changed into a prime (51257347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35181 + ... + 36608.

It is an arithmetic number, because the mean of its divisors is an integer number (3876660).

Almost surely, 2^51257346 is an apocalyptic number.

51257346 is an abundant number, since it is smaller than the sum of its proper divisors (72795774).

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

51257346 is a wasteful number, since it uses less digits than its factorization.

51257346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71818.

The product of its digits is 25200, while the sum is 33.

The square root of 51257346 is about 7159.4235801495. The cubic root of 51257346 is about 371.4656885843.

The spelling of 51257346 in words is "fifty-one million, two hundred fifty-seven thousand, three hundred forty-six".