55712547 has 12 divisors (see below), whose sum is σ = 87789624. Its totient is φ = 33765120.

The previous prime is 55712543. The next prime is 55712551. The reversal of 55712547 is 74521755.

It is an interprime number because it is at equal distance from previous prime (55712543) and next prime (55712551).

It is not a de Polignac number, because 55712547 - 2² = 55712543 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (55712543) 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, 281278 + ... + 281475.

It is an arithmetic number, because the mean of its divisors is an integer number (7315802).

Almost surely, 2^55712547 is an apocalyptic number.

55712547 is a deficient number, since it is larger than the sum of its proper divisors (32077077).

55712547 is a wasteful number, since it uses less digits than its factorization.

55712547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562770 (or 562767 counting only the distinct ones).

The product of its digits is 49000, while the sum is 36.

The square root of 55712547 is about 7464.0838017804. The cubic root of 55712547 is about 381.9304968439.

It can be divided in two parts, 5571 and 2547, that added together give a palindrome (8118).

The spelling of 55712547 in words is "fifty-five million, seven hundred twelve thousand, five hundred forty-seven".