55489497 has 8 divisors (see below), whose sum is σ = 84555456. Its totient is φ = 31708272.

The previous prime is 55489477. The next prime is 55489507. The reversal of 55489497 is 79498455.

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

It is not a de Polignac number, because 55489497 - 2⁶ = 55489433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55489477) 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, 1321158 + ... + 1321199.

It is an arithmetic number, because the mean of its divisors is an integer number (10569432).

Almost surely, 2^55489497 is an apocalyptic number.

It is an amenable number.

55489497 is a deficient number, since it is larger than the sum of its proper divisors (29065959).

55489497 is a wasteful number, since it uses less digits than its factorization.

55489497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2642367.

The product of its digits is 1814400, while the sum is 51.

The square root of 55489497 is about 7449.1272643176. The cubic root of 55489497 is about 381.4201178633.

The spelling of 55489497 in words is "fifty-five million, four hundred eighty-nine thousand, four hundred ninety-seven".