51457906 has 8 divisors (see below), whose sum is σ = 77341824. Its totient is φ = 25677300.

The previous prime is 51457891. The next prime is 51457907. The reversal of 51457906 is 60975415.

51457906 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 not an unprimeable number, because it can be changed into a prime (51457907) 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, 24570 + ... + 26581.

It is an arithmetic number, because the mean of its divisors is an integer number (9667728).

Almost surely, 2^51457906 is an apocalyptic number.

51457906 is a deficient number, since it is larger than the sum of its proper divisors (25883918).

51457906 is a wasteful number, since it uses less digits than its factorization.

51457906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51656.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 51457906 is about 7173.4166197148. The cubic root of 51457906 is about 371.9495489834.

The spelling of 51457906 in words is "fifty-one million, four hundred fifty-seven thousand, nine hundred six".