55707147 has 24 divisors (see below), whose sum is σ = 86177520. Its totient is φ = 34552320.

The previous prime is 55707143. The next prime is 55707149. The reversal of 55707147 is 74170755.

It is not a de Polignac number, because 55707147 - 2² = 55707143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55707143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11572 + ... + 15662.

It is an arithmetic number, because the mean of its divisors is an integer number (3590730).

Almost surely, 2^55707147 is an apocalyptic number.

55707147 is a deficient number, since it is larger than the sum of its proper divisors (30470373).

55707147 is a wasteful number, since it uses less digits than its factorization.

55707147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4203 (or 4200 counting only the distinct ones).

The product of its (nonzero) digits is 34300, while the sum is 36.

The square root of 55707147 is about 7463.7220607415. The cubic root of 55707147 is about 381.9181567672.

The spelling of 55707147 in words is "fifty-five million, seven hundred seven thousand, one hundred forty-seven".