55911465 has 20 divisors (see below), whose sum is σ = 100227204. Its totient is φ = 29819232.

The previous prime is 55911437. The next prime is 55911469. The reversal of 55911465 is 56411955.

55911465 is a `hidden beast` number, since 5 + 591 + 1 + 4 + 65 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 37015056 + 18896409 = 6084^2 + 4347^2 .

It is not a de Polignac number, because 55911465 - 2⁷ = 55911337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55911469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 68622 + ... + 69431.

Almost surely, 2^55911465 is an apocalyptic number.

It is an amenable number.

55911465 is a deficient number, since it is larger than the sum of its proper divisors (44315739).

55911465 is a wasteful number, since it uses less digits than its factorization.

55911465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138070 (or 138061 counting only the distinct ones).

The product of its digits is 27000, while the sum is 36.

The square root of 55911465 is about 7477.3969401122. The cubic root of 55911465 is about 382.3845095388.

It can be divided in two parts, 5591 and 1465, that added together give a square (7056 = 84²).

The spelling of 55911465 in words is "fifty-five million, nine hundred eleven thousand, four hundred sixty-five".