155050079 has 2 divisors, whose sum is σ = 155050080. Its totient is φ = 155050078.

The previous prime is 155050073. The next prime is 155050099. The reversal of 155050079 is 970050551.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 155050079 - 2²⁰ = 154001503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155050073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77525039 + 77525040.

It is an arithmetic number, because the mean of its divisors is an integer number (77525040).

Almost surely, 2^155050079 is an apocalyptic number.

155050079 is a deficient number, since it is larger than the sum of its proper divisors (1).

155050079 is an equidigital number, since it uses as much as digits as its factorization.

155050079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7875, while the sum is 32.

The square root of 155050079 is about 12451.9106566021. The cubic root of 155050079 is about 537.2263805837.

The spelling of 155050079 in words is "one hundred fifty-five million, fifty thousand, seventy-nine".