155052303 has 16 divisors (see below), whose sum is σ = 236687616. Its totient is φ = 88444800.

The previous prime is 155052263. The next prime is 155052341. The reversal of 155052303 is 303250551.

It is a Cunningham number, because it is equal to 12452²-1.

It is not a de Polignac number, because 155052303 - 2⁶ = 155052239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155052343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6228 + ... + 18678.

It is an arithmetic number, because the mean of its divisors is an integer number (14792976).

Almost surely, 2^155052303 is an apocalyptic number.

155052303 is a deficient number, since it is larger than the sum of its proper divisors (81635313).

155052303 is a wasteful number, since it uses less digits than its factorization.

155052303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13054.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 155052303 is about 12451.9999598458. Note that the first 4 decimals coincide. The cubic root of 155052303 is about 537.2289491855.

The spelling of 155052303 in words is "one hundred fifty-five million, fifty-two thousand, three hundred three".