55567161 has 64 divisors (see below), whose sum is σ = 94348800. Its totient is φ = 32078592.

The previous prime is 55567151. The next prime is 55567201. The reversal of 55567161 is 16176555.

It is not a de Polignac number, because 55567161 - 2¹⁷ = 55436089 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 a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55567111) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 539436 + ... + 539538.

It is an arithmetic number, because the mean of its divisors is an integer number (1474200).

Almost surely, 2^55567161 is an apocalyptic number.

It is an amenable number.

55567161 is a deficient number, since it is larger than the sum of its proper divisors (38781639).

55567161 is a wasteful number, since it uses less digits than its factorization.

55567161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207 (or 201 counting only the distinct ones).

The product of its digits is 31500, while the sum is 36.

The square root of 55567161 is about 7454.3384012265. The cubic root of 55567161 is about 381.5979821696.

The spelling of 55567161 in words is "fifty-five million, five hundred sixty-seven thousand, one hundred sixty-one".