55257503 has 8 divisors (see below), whose sum is σ = 63634560. Its totient is φ = 47001240.

The previous prime is 55257493. The next prime is 55257551. The reversal of 55257503 is 30575255.

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 55257503 - 2⁴ = 55257487 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55257503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55257583) 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, 29213 + ... + 31046.

It is an arithmetic number, because the mean of its divisors is an integer number (7954320).

Almost surely, 2^55257503 is an apocalyptic number.

55257503 is a deficient number, since it is larger than the sum of its proper divisors (8377057).

55257503 is a wasteful number, since it uses less digits than its factorization.

55257503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60397.

The product of its (nonzero) digits is 26250, while the sum is 32.

The square root of 55257503 is about 7433.5390629229. The cubic root of 55257503 is about 380.8878202308.

The spelling of 55257503 in words is "fifty-five million, two hundred fifty-seven thousand, five hundred three".