51578352 has 60 divisors (see below), whose sum is σ = 164972080. Its totient is φ = 14736384.

The previous prime is 51578347. The next prime is 51578353. The reversal of 51578352 is 25387515.

51578352 is a `hidden beast` number, since 51 + 578 + 35 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51578353) 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 11 ways as a sum of consecutive naturals, for example, 24577 + ... + 26592.

Almost surely, 2^51578352 is an apocalyptic number.

It is an amenable number.

51578352 is an abundant number, since it is smaller than the sum of its proper divisors (113393728).

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

51578352 is a wasteful number, since it uses less digits than its factorization.

51578352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51190 (or 51181 counting only the distinct ones).

The product of its digits is 42000, while the sum is 36.

The square root of 51578352 is about 7181.8070149510. The cubic root of 51578352 is about 372.2395266264.

The spelling of 51578352 in words is "fifty-one million, five hundred seventy-eight thousand, three hundred fifty-two".