55555495 has 4 divisors (see below), whose sum is σ = 66666600. Its totient is φ = 44444392.

The previous prime is 55555481. The next prime is 55555517. The reversal of 55555495 is 59455555.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 59455555 = 5 ⋅11891111.

It is a cyclic number.

It is not a de Polignac number, because 55555495 - 2¹¹ = 55553447 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5555545 + ... + 5555554.

It is an arithmetic number, because the mean of its divisors is an integer number (16666650).

Almost surely, 2^55555495 is an apocalyptic number.

55555495 is a deficient number, since it is larger than the sum of its proper divisors (11111105).

55555495 is a wasteful number, since it uses less digits than its factorization.

55555495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11111104.

The product of its digits is 562500, while the sum is 43.

The square root of 55555495 is about 7453.5558628080. Note that the first 3 decimals coincide. The cubic root of 55555495 is about 381.5712755468.

The spelling of 55555495 in words is "fifty-five million, five hundred fifty-five thousand, four hundred ninety-five".