55549697 has 8 divisors (see below), whose sum is σ = 64114752. Its totient is φ = 47142000.

The previous prime is 55549667. The next prime is 55549699. The reversal of 55549697 is 79694555.

It is a happy number.

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 55549697 - 2¹² = 55545601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55549699) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38579 + ... + 39992.

It is an arithmetic number, because the mean of its divisors is an integer number (8014344).

Almost surely, 2^55549697 is an apocalyptic number.

It is an amenable number.

55549697 is a deficient number, since it is larger than the sum of its proper divisors (8565055).

55549697 is a wasteful number, since it uses less digits than its factorization.

55549697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78679.

The product of its digits is 1701000, while the sum is 50.

The square root of 55549697 is about 7453.1669107836. The cubic root of 55549697 is about 381.5580009690.

It can be divided in two parts, 5554 and 9697, that added together give a palindrome (15251).

The spelling of 55549697 in words is "fifty-five million, five hundred forty-nine thousand, six hundred ninety-seven".