51676557 has 4 divisors (see below), whose sum is σ = 68902080. Its totient is φ = 34451036.

The previous prime is 51676553. The next prime is 51676571. The reversal of 51676557 is 75567615.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51676557 - 2² = 51676553 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51676553) 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 3 ways as a sum of consecutive naturals, for example, 8612757 + ... + 8612762.

It is an arithmetic number, because the mean of its divisors is an integer number (17225520).

Almost surely, 2^51676557 is an apocalyptic number.

It is an amenable number.

51676557 is a deficient number, since it is larger than the sum of its proper divisors (17225523).

51676557 is a wasteful number, since it uses less digits than its factorization.

51676557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17225522.

The product of its digits is 220500, while the sum is 42.

The square root of 51676557 is about 7188.6408312003. The cubic root of 51676557 is about 372.4756244278.

The spelling of 51676557 in words is "fifty-one million, six hundred seventy-six thousand, five hundred fifty-seven".