55135489 has 8 divisors (see below), whose sum is σ = 56058912. Its totient is φ = 54218400.

The previous prime is 55135469. The next prime is 55135499. The reversal of 55135489 is 98453155.

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 55135489 - 2¹⁵ = 55102721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55135469) 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, 17914 + ... + 20764.

It is an arithmetic number, because the mean of its divisors is an integer number (7007364).

Almost surely, 2^55135489 is an apocalyptic number.

It is an amenable number.

55135489 is a deficient number, since it is larger than the sum of its proper divisors (923423).

55135489 is a wasteful number, since it uses less digits than its factorization.

55135489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3167.

The product of its digits is 108000, while the sum is 40.

The square root of 55135489 is about 7425.3275348634. The cubic root of 55135489 is about 380.6072677138.

The spelling of 55135489 in words is "fifty-five million, one hundred thirty-five thousand, four hundred eighty-nine".