51177648 has 40 divisors (see below), whose sum is σ = 134710128. Its totient is φ = 16736512.

The previous prime is 51177629. The next prime is 51177649. The reversal of 51177648 is 84677115.

It is not an unprimeable number, because it can be changed into a prime (51177649) 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, 7515 + ... + 12602.

Almost surely, 2^51177648 is an apocalyptic number.

It is an amenable number.

51177648 is an abundant number, since it is smaller than the sum of its proper divisors (83532480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51177648 is a wasteful number, since it uses less digits than its factorization.

51177648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20181 (or 20175 counting only the distinct ones).

The product of its digits is 47040, while the sum is 39.

The square root of 51177648 is about 7153.8554640138. The cubic root of 51177648 is about 371.2730629938.

The spelling of 51177648 in words is "fifty-one million, one hundred seventy-seven thousand, six hundred forty-eight".