55235503 has 2 divisors, whose sum is σ = 55235504. Its totient is φ = 55235502.

The previous prime is 55235497. The next prime is 55235507. The reversal of 55235503 is 30553255.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55235503 - 2¹³ = 55227311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55235507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27617751 + 27617752.

It is an arithmetic number, because the mean of its divisors is an integer number (27617752).

Almost surely, 2^55235503 is an apocalyptic number.

55235503 is a deficient number, since it is larger than the sum of its proper divisors (1).

55235503 is an equidigital number, since it uses as much as digits as its factorization.

55235503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11250, while the sum is 28.

The square root of 55235503 is about 7432.0591359327. The cubic root of 55235503 is about 380.8372651393.

Adding to 55235503 its reverse (30553255), we get a palindrome (85788758).

It can be divided in two parts, 5523 and 5503, that added together give a triangular number (11026 = T₁₄₈).

The spelling of 55235503 in words is "fifty-five million, two hundred thirty-five thousand, five hundred three".