51957406 has 24 divisors (see below), whose sum is σ = 84134160. Its totient is φ = 23981376.

The previous prime is 51957403. The next prime is 51957407. The reversal of 51957406 is 60475915.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51957403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118135 + ... + 118573.

It is an arithmetic number, because the mean of its divisors is an integer number (3505590).

Almost surely, 2^51957406 is an apocalyptic number.

51957406 is a deficient number, since it is larger than the sum of its proper divisors (32176754).

51957406 is a wasteful number, since it uses less digits than its factorization.

51957406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576 (or 517 counting only the distinct ones).

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

The square root of 51957406 is about 7208.1485833742. The cubic root of 51957406 is about 373.1491759328.

The spelling of 51957406 in words is "fifty-one million, nine hundred fifty-seven thousand, four hundred six".