55558051 has 4 divisors (see below), whose sum is σ = 55573704. Its totient is φ = 55542400.

The previous prime is 55558039. The next prime is 55558079. The reversal of 55558051 is 15085555.

It is a happy number.

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 55558051 - 2⁷ = 55557923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55557998 and 55558016.

It is not an unprimeable number, because it can be changed into a prime (55558001) 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, 336 + ... + 10546.

It is an arithmetic number, because the mean of its divisors is an integer number (13893426).

Almost surely, 2^55558051 is an apocalyptic number.

55558051 is a deficient number, since it is larger than the sum of its proper divisors (15653).

55558051 is a wasteful number, since it uses less digits than its factorization.

55558051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15652.

The product of its (nonzero) digits is 25000, while the sum is 34.

The square root of 55558051 is about 7453.7273226219. The cubic root of 55558051 is about 381.5771272405.

The spelling of 55558051 in words is "fifty-five million, five hundred fifty-eight thousand, fifty-one".