55161365 has 8 divisors (see below), whose sum is σ = 75649920. Its totient is φ = 37824912.

The previous prime is 55161329. The next prime is 55161371. The reversal of 55161365 is 56316155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55161365 - 2⁸ = 55161109 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 787985 + ... + 788054.

It is an arithmetic number, because the mean of its divisors is an integer number (9456240).

Almost surely, 2^55161365 is an apocalyptic number.

It is an amenable number.

55161365 is a deficient number, since it is larger than the sum of its proper divisors (20488555).

55161365 is a wasteful number, since it uses less digits than its factorization.

55161365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1576051.

The product of its digits is 13500, while the sum is 32.

The square root of 55161365 is about 7427.0697451956. The cubic root of 55161365 is about 380.6668001706. Note that the first 3 decimals are identical.

It can be divided in two parts, 551 and 61365, that added together give a palindrome (61916).

The spelling of 55161365 in words is "fifty-five million, one hundred sixty-one thousand, three hundred sixty-five".