55557947527 has 4 divisors (see below), whose sum is σ = 55559920120. Its totient is φ = 55555974936.

The previous prime is 55557947479. The next prime is 55557947593. The reversal of 55557947527 is 72574975555.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55557947527 - 2¹¹ = 55557945479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55557942527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 943428 + ... + 1000585.

It is an arithmetic number, because the mean of its divisors is an integer number (13889980030).

Almost surely, 2^55557947527 is an apocalyptic number.

55557947527 is a deficient number, since it is larger than the sum of its proper divisors (1972593).

55557947527 is a wasteful number, since it uses less digits than its factorization.

55557947527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972592.

The product of its digits is 77175000, while the sum is 61.

The spelling of 55557947527 in words is "fifty-five billion, five hundred fifty-seven million, nine hundred forty-seven thousand, five hundred twenty-seven".