55557423 has 6 divisors (see below), whose sum is σ = 80249624. Its totient is φ = 37038276.

The previous prime is 55557421. The next prime is 55557427. The reversal of 55557423 is 32475555.

It is not a de Polignac number, because 55557423 - 2¹ = 55557421 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 (55557421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3086515 + ... + 3086532.

Almost surely, 2^55557423 is an apocalyptic number.

55557423 is a deficient number, since it is larger than the sum of its proper divisors (24692201).

55557423 is a wasteful number, since it uses less digits than its factorization.

55557423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6173053 (or 6173050 counting only the distinct ones).

The product of its digits is 105000, while the sum is 36.

The square root of 55557423 is about 7453.6851959283. The cubic root of 55557423 is about 381.5756895170.

The spelling of 55557423 in words is "fifty-five million, five hundred fifty-seven thousand, four hundred twenty-three".