55769481 has 12 divisors (see below), whose sum is σ = 80624752. Its totient is φ = 37147896.

The previous prime is 55769479. The next prime is 55769489. The reversal of 55769481 is 18496755.

55769481 is a `hidden beast` number, since 557 + 6 + 94 + 8 + 1 = 666.

It is not a de Polignac number, because 55769481 - 2¹ = 55769479 is a prime.

It is a super-2 number, since 2×55769481² = 6220470022018722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55769489) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13950 + ... + 17496.

Almost surely, 2^55769481 is an apocalyptic number.

It is an amenable number.

55769481 is a deficient number, since it is larger than the sum of its proper divisors (24855271).

55769481 is a wasteful number, since it uses less digits than its factorization.

55769481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5300 (or 5297 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 55769481 is about 7467.8966918403. The cubic root of 55769481 is about 382.0605538903.

The spelling of 55769481 in words is "fifty-five million, seven hundred sixty-nine thousand, four hundred eighty-one".