55250052503 has 2 divisors, whose sum is σ = 55250052504. Its totient is φ = 55250052502.

The previous prime is 55250052499. The next prime is 55250052553. The reversal of 55250052503 is 30525005255.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55250052503 - 2² = 55250052499 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55250052503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55250052553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27625026251 + 27625026252.

It is an arithmetic number, because the mean of its divisors is an integer number (27625026252).

Almost surely, 2^55250052503 is an apocalyptic number.

55250052503 is a deficient number, since it is larger than the sum of its proper divisors (1).

55250052503 is an equidigital number, since it uses as much as digits as its factorization.

55250052503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37500, while the sum is 32.

Adding to 55250052503 its reverse (30525005255), we get a palindrome (85775057758).

The spelling of 55250052503 in words is "fifty-five billion, two hundred fifty million, fifty-two thousand, five hundred three".