55436969547 has 12 divisors (see below), whose sum is σ = 80094142440. Its totient is φ = 36949432128.

The previous prime is 55436969543. The next prime is 55436969551. The reversal of 55436969547 is 74596963455.

55436969547 is a `hidden beast` number, since 5 + 54 + 36 + 9 + 6 + 9 + 547 = 666.

It is an interprime number because it is at equal distance from previous prime (55436969543) and next prime (55436969551).

It is not a de Polignac number, because 55436969547 - 2² = 55436969543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55436969543) 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, 671097 + ... + 749162.

It is an arithmetic number, because the mean of its divisors is an integer number (6674511870).

Almost surely, 2^55436969547 is an apocalyptic number.

55436969547 is a deficient number, since it is larger than the sum of its proper divisors (24657172893).

55436969547 is a wasteful number, since it uses less digits than its factorization.

55436969547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424602 (or 1424599 counting only the distinct ones).

The product of its digits is 122472000, while the sum is 63.

The spelling of 55436969547 in words is "fifty-five billion, four hundred thirty-six million, nine hundred sixty-nine thousand, five hundred forty-seven".