51351448 has 16 divisors (see below), whose sum is σ = 98333280. Its totient is φ = 25129248.

The previous prime is 51351439. The next prime is 51351451. The reversal of 51351448 is 84415315.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67911 + ... + 68662.

It is an arithmetic number, because the mean of its divisors is an integer number (6145830).

Almost surely, 2^51351448 is an apocalyptic number.

It is an amenable number.

51351448 is a deficient number, since it is larger than the sum of its proper divisors (46981832).

51351448 is a wasteful number, since it uses less digits than its factorization.

51351448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136626 (or 136622 counting only the distinct ones).

The product of its digits is 9600, while the sum is 31.

The square root of 51351448 is about 7165.9924644113. The cubic root of 51351448 is about 371.6928709452.

The spelling of 51351448 in words is "fifty-one million, three hundred fifty-one thousand, four hundred forty-eight".