55147655 has 8 divisors (see below), whose sum is σ = 66414384. Its totient is φ = 43960000.

The previous prime is 55147637. The next prime is 55147657. The reversal of 55147655 is 55674155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55147655 - 2¹⁶ = 55082119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55147657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18221 + ... + 21030.

It is an arithmetic number, because the mean of its divisors is an integer number (8301798).

Almost surely, 2^55147655 is an apocalyptic number.

55147655 is a deficient number, since it is larger than the sum of its proper divisors (11266729).

55147655 is a wasteful number, since it uses less digits than its factorization.

55147655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39537.

The product of its digits is 105000, while the sum is 38.

The square root of 55147655 is about 7426.1467127980. The cubic root of 55147655 is about 380.6352601349.

The spelling of 55147655 in words is "fifty-five million, one hundred forty-seven thousand, six hundred fifty-five".