55203545 has 8 divisors (see below), whose sum is σ = 66289920. Its totient is φ = 44132400.

The previous prime is 55203523. The next prime is 55203553. The reversal of 55203545 is 54530255.

It is a happy number.

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

It is not a de Polignac number, because 55203545 - 2⁶ = 55203481 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6926 + ... + 12584.

It is an arithmetic number, because the mean of its divisors is an integer number (8286240).

Almost surely, 2^55203545 is an apocalyptic number.

It is an amenable number.

55203545 is a deficient number, since it is larger than the sum of its proper divisors (11086375).

55203545 is a wasteful number, since it uses less digits than its factorization.

55203545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7615.

The product of its (nonzero) digits is 15000, while the sum is 29.

The square root of 55203545 is about 7429.9088150528. The cubic root of 55203545 is about 380.7638030563.

The spelling of 55203545 in words is "fifty-five million, two hundred three thousand, five hundred forty-five".