55557825 has 24 divisors (see below), whose sum is σ = 92071488. Its totient is φ = 29561280.

The previous prime is 55557791. The next prime is 55557847. The reversal of 55557825 is 52875555.

It is not a de Polignac number, because 55557825 - 2¹¹ = 55555777 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55227 + ... + 56223.

It is an arithmetic number, because the mean of its divisors is an integer number (3836312).

Almost surely, 2^55557825 is an apocalyptic number.

It is an amenable number.

55557825 is a deficient number, since it is larger than the sum of its proper divisors (36513663).

55557825 is a wasteful number, since it uses less digits than its factorization.

55557825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1753 (or 1748 counting only the distinct ones).

The product of its digits is 350000, while the sum is 42.

The square root of 55557825 is about 7453.7121624061. The cubic root of 55557825 is about 381.5766098445.

The spelling of 55557825 in words is "fifty-five million, five hundred fifty-seven thousand, eight hundred twenty-five".