155352503 has 2 divisors, whose sum is σ = 155352504. Its totient is φ = 155352502.

The previous prime is 155352497. The next prime is 155352521. The reversal of 155352503 is 305253551.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 155352503 - 2²² = 151158199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155352523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77676251 + 77676252.

It is an arithmetic number, because the mean of its divisors is an integer number (77676252).

Almost surely, 2^155352503 is an apocalyptic number.

155352503 is a deficient number, since it is larger than the sum of its proper divisors (1).

155352503 is an equidigital number, since it uses as much as digits as its factorization.

155352503 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 29.

The square root of 155352503 is about 12464.0484193540. The cubic root of 155352503 is about 537.5754390600.

The spelling of 155352503 in words is "one hundred fifty-five million, three hundred fifty-two thousand, five hundred three".