155245525340303 has 2 divisors, whose sum is σ = 155245525340304. Its totient is φ = 155245525340302.

The previous prime is 155245525340273. The next prime is 155245525340309. The reversal of 155245525340303 is 303043525542551.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 155245525340303 - 2²⁴ = 155245508563087 is a prime.

It is a super-2 number, since 2×155245525340303² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155245525340309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77622762670151 + 77622762670152.

It is an arithmetic number, because the mean of its divisors is an integer number (77622762670152).

Almost surely, 2^{155245525340303} is an apocalyptic number.

155245525340303 is a deficient number, since it is larger than the sum of its proper divisors (1).

155245525340303 is an equidigital number, since it uses as much as digits as its factorization.

155245525340303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400000, while the sum is 47.

The spelling of 155245525340303 in words is "one hundred fifty-five trillion, two hundred forty-five billion, five hundred twenty-five million, three hundred forty thousand, three hundred three".