51655377 has 8 divisors (see below), whose sum is σ = 69235200. Its totient is φ = 34256240.

The previous prime is 51655363. The next prime is 51655379. The reversal of 51655377 is 77355615.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51655377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51655379) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 44502 + ... + 45647.

It is an arithmetic number, because the mean of its divisors is an integer number (8654400).

Almost surely, 2^51655377 is an apocalyptic number.

It is an amenable number.

51655377 is a deficient number, since it is larger than the sum of its proper divisors (17579823).

51655377 is a wasteful number, since it uses less digits than its factorization.

51655377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90343.

The product of its digits is 110250, while the sum is 39.

The square root of 51655377 is about 7187.1675227450. The cubic root of 51655377 is about 372.4247302234.

The spelling of 51655377 in words is "fifty-one million, six hundred fifty-five thousand, three hundred seventy-seven".