55965361 has 3 divisors (see below), whose sum is σ = 55972843. Its totient is φ = 55957880.

The previous prime is 55965353. The next prime is 55965379. The reversal of 55965361 is 16356955.

The square root of 55965361 is 7481.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 16356955 = 5 ⋅3271391.

It can be written as a sum of positive squares in only one way, i.e., 48566961 + 7398400 = 6969^2 + 2720^2 .

It is not a de Polignac number, because 55965361 - 2³ = 55965353 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55965311) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3741 + ... + 11221.

Almost surely, 2^55965361 is an apocalyptic number.

55965361 is the 7481-st square number.

55965361 is the 3741-st centered octagonal number.

It is an amenable number.

55965361 is a deficient number, since it is larger than the sum of its proper divisors (7482).

55965361 is an frugal number, since it uses more digits than its factorization.

55965361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14962 (or 7481 counting only the distinct ones).

The product of its digits is 121500, while the sum is 40.

The cubic root of 55965361 is about 382.5073369234.

The spelling of 55965361 in words is "fifty-five million, nine hundred sixty-five thousand, three hundred sixty-one".