55147563 has 12 divisors (see below), whose sum is σ = 79834248. Its totient is φ = 36683520.

The previous prime is 55147559. The next prime is 55147571. The reversal of 55147563 is 36574155.

55147563 is a `hidden beast` number, since 5 + 51 + 47 + 563 = 666.

It is not a de Polignac number, because 55147563 - 2² = 55147559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55147513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2358 + ... + 10763.

It is an arithmetic number, because the mean of its divisors is an integer number (6652854).

Almost surely, 2^55147563 is an apocalyptic number.

55147563 is a deficient number, since it is larger than the sum of its proper divisors (24686685).

55147563 is a wasteful number, since it uses less digits than its factorization.

55147563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13594 (or 13591 counting only the distinct ones).

The product of its digits is 63000, while the sum is 36.

The square root of 55147563 is about 7426.1405184658. The cubic root of 55147563 is about 380.6350484700.

The spelling of 55147563 in words is "fifty-five million, one hundred forty-seven thousand, five hundred sixty-three".