51477393 has 12 divisors (see below), whose sum is σ = 75443984. Its totient is φ = 31198200.

The previous prime is 51477353. The next prime is 51477409. The reversal of 51477393 is 39377415.

It is a happy number.

51477393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51477393 - 2⁹ = 51476881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51477353) 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 11 ways as a sum of consecutive naturals, for example, 70543 + ... + 71268.

Almost surely, 2^51477393 is an apocalyptic number.

It is an amenable number.

51477393 is a deficient number, since it is larger than the sum of its proper divisors (23966591).

51477393 is a wasteful number, since it uses less digits than its factorization.

51477393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141836 (or 141825 counting only the distinct ones).

The product of its digits is 79380, while the sum is 39.

The square root of 51477393 is about 7174.7747699841. The cubic root of 51477393 is about 371.9964952265.

The spelling of 51477393 in words is "fifty-one million, four hundred seventy-seven thousand, three hundred ninety-three".