55813485 has 64 divisors (see below), whose sum is σ = 113541120. Its totient is φ = 22775040.

The previous prime is 55813481. The next prime is 55813489. The reversal of 55813485 is 58431855.

It is an interprime number because it is at equal distance from previous prime (55813481) and next prime (55813489).

It is not a de Polignac number, because 55813485 - 2² = 55813481 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55813481) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 41656 + ... + 42974.

It is an arithmetic number, because the mean of its divisors is an integer number (1774080).

Almost surely, 2^55813485 is an apocalyptic number.

It is an amenable number.

55813485 is an abundant number, since it is smaller than the sum of its proper divisors (57727635).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55813485 is a wasteful number, since it uses less digits than its factorization.

55813485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378.

The product of its digits is 96000, while the sum is 39.

The square root of 55813485 is about 7470.8423219875. The cubic root of 55813485 is about 382.1610136905.

The spelling of 55813485 in words is "fifty-five million, eight hundred thirteen thousand, four hundred eighty-five".