55560055 has 4 divisors (see below), whose sum is σ = 66672072. Its totient is φ = 44448040.

The previous prime is 55560049. The next prime is 55560061. The reversal of 55560055 is 55006555.

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

It is an interprime number because it is at equal distance from previous prime (55560049) and next prime (55560061).

It is not a de Polignac number, because 55560055 - 2⁵ = 55560023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55559999 and 55560026.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5556001 + ... + 5556010.

It is an arithmetic number, because the mean of its divisors is an integer number (16668018).

Almost surely, 2^55560055 is an apocalyptic number.

55560055 is a deficient number, since it is larger than the sum of its proper divisors (11112017).

55560055 is a wasteful number, since it uses less digits than its factorization.

55560055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11112016.

The product of its (nonzero) digits is 18750, while the sum is 31.

The square root of 55560055 is about 7453.8617507974. The cubic root of 55560055 is about 381.5817150626.

The spelling of 55560055 in words is "fifty-five million, five hundred sixty thousand, fifty-five".