55603541 has 4 divisors (see below), whose sum is σ = 63546912. Its totient is φ = 47660172.

The previous prime is 55603523. The next prime is 55603543. The reversal of 55603541 is 14530655.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14530655 = 5 ⋅2906131.

It is not a de Polignac number, because 55603541 - 2⁶ = 55603477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55603543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3971675 + ... + 3971688.

It is an arithmetic number, because the mean of its divisors is an integer number (15886728).

Almost surely, 2^55603541 is an apocalyptic number.

It is an amenable number.

55603541 is a deficient number, since it is larger than the sum of its proper divisors (7943371).

55603541 is an equidigital number, since it uses as much as digits as its factorization.

55603541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7943370.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 55603541 is about 7456.7781916857. The cubic root of 55603541 is about 381.6812418131.

The spelling of 55603541 in words is "fifty-five million, six hundred three thousand, five hundred forty-one".