55475519 has 8 divisors (see below), whose sum is σ = 60600960. Its totient is φ = 50363800.

The previous prime is 55475489. The next prime is 55475587. The reversal of 55475519 is 91557455.

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 55475519 - 2²⁰ = 54426943 is a prime.

It is a super-2 number, since 2×55475519² = 6155066416638722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55475219) 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, 6224 + ... + 12234.

It is an arithmetic number, because the mean of its divisors is an integer number (7575120).

Almost surely, 2^55475519 is an apocalyptic number.

55475519 is a deficient number, since it is larger than the sum of its proper divisors (5125441).

55475519 is a wasteful number, since it uses less digits than its factorization.

55475519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6861.

The product of its digits is 157500, while the sum is 41.

The square root of 55475519 is about 7448.1889745092. The cubic root of 55475519 is about 381.3880881494.

It can be divided in two parts, 55 and 475519, that added together give a palindrome (475574).

The spelling of 55475519 in words is "fifty-five million, four hundred seventy-five thousand, five hundred nineteen".