55603519 has 8 divisors (see below), whose sum is σ = 59635440. Its totient is φ = 51682176.

The previous prime is 55603507. The next prime is 55603523. The reversal of 55603519 is 91530655.

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 55603519 - 2⁵ = 55603487 is a prime.

It is a super-2 number, since 2×55603519² = 6183502650366722, 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 (55603319) 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, 26602 + ... + 28615.

It is an arithmetic number, because the mean of its divisors is an integer number (7454430).

Almost surely, 2^55603519 is an apocalyptic number.

55603519 is a deficient number, since it is larger than the sum of its proper divisors (4031921).

55603519 is a wasteful number, since it uses less digits than its factorization.

55603519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55289.

The product of its (nonzero) digits is 20250, while the sum is 34.

The square root of 55603519 is about 7456.7767165177. The cubic root of 55603519 is about 381.6811914747.

It can be divided in two parts, 5560 and 3519, that multiplied together give a triangular number (19565640 = T₆₂₅₅).

The spelling of 55603519 in words is "fifty-five million, six hundred three thousand, five hundred nineteen".