51907388 has 12 divisors (see below), whose sum is σ = 97825560. Its totient is φ = 23957232.

The previous prime is 51907369. The next prime is 51907391. The reversal of 51907388 is 88370915.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 499058 + ... + 499161.

It is an arithmetic number, because the mean of its divisors is an integer number (8152130).

Almost surely, 2^51907388 is an apocalyptic number.

It is an amenable number.

51907388 is a deficient number, since it is larger than the sum of its proper divisors (45918172).

51907388 is a wasteful number, since it uses less digits than its factorization.

51907388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998236 (or 998234 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 51907388 is about 7204.6782023904. The cubic root of 51907388 is about 373.0293972571.

The spelling of 51907388 in words is "fifty-one million, nine hundred seven thousand, three hundred eighty-eight".