52578477 has 40 divisors (see below), whose sum is σ = 91719936. Its totient is φ = 29390688.

The previous prime is 52578473. The next prime is 52578497. The reversal of 52578477 is 77487525.

52578477 is a `hidden beast` number, since 5 + 2 + 578 + 4 + 77 = 666.

It is not a de Polignac number, because 52578477 - 2² = 52578473 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52578473) 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 39 ways as a sum of consecutive naturals, for example, 25663 + ... + 27635.

Almost surely, 2^52578477 is an apocalyptic number.

It is an amenable number.

52578477 is a deficient number, since it is larger than the sum of its proper divisors (39141459).

52578477 is a wasteful number, since it uses less digits than its factorization.

52578477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2039 (or 2030 counting only the distinct ones).

The product of its digits is 548800, while the sum is 45.

The square root of 52578477 is about 7251.1017783507. The cubic root of 52578477 is about 374.6300992491.

The spelling of 52578477 in words is "fifty-two million, five hundred seventy-eight thousand, four hundred seventy-seven".