155263063 has 4 divisors (see below), whose sum is σ = 159459400. Its totient is φ = 151066728.

The previous prime is 155263049. The next prime is 155263111. The reversal of 155263063 is 360362551.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155263063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155263463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2098113 + ... + 2098186.

It is an arithmetic number, because the mean of its divisors is an integer number (39864850).

Almost surely, 2^155263063 is an apocalyptic number.

155263063 is a deficient number, since it is larger than the sum of its proper divisors (4196337).

155263063 is an equidigital number, since it uses as much as digits as its factorization.

155263063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4196336.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 155263063 is about 12460.4599834838. The cubic root of 155263063 is about 537.4722544178.

The spelling of 155263063 in words is "one hundred fifty-five million, two hundred sixty-three thousand, sixty-three".