55434897 has 12 divisors (see below), whose sum is σ = 91511680. Its totient is φ = 31677048.

The previous prime is 55434871. The next prime is 55434937. The reversal of 55434897 is 79843455.

55434897 is a `hidden beast` number, since 554 + 3 + 4 + 8 + 97 = 666.

It is not a de Polignac number, because 55434897 - 2¹⁴ = 55418513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55434397) 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, 439897 + ... + 440022.

Almost surely, 2^55434897 is an apocalyptic number.

It is an amenable number.

55434897 is a deficient number, since it is larger than the sum of its proper divisors (36076783).

55434897 is a wasteful number, since it uses less digits than its factorization.

55434897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879932 (or 879929 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 55434897 is about 7445.4615034933. The cubic root of 55434897 is about 381.2949748250.

It can be divided in two parts, 5543 and 4897, that added together give a triangular number (10440 = T₁₄₄).

The spelling of 55434897 in words is "fifty-five million, four hundred thirty-four thousand, eight hundred ninety-seven".