155050061 has 8 divisors (see below), whose sum is σ = 163841280. Its totient is φ = 146429712.

The previous prime is 155050057. The next prime is 155050067. The reversal of 155050061 is 160050551.

155050061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 155050061 - 2² = 155050057 is a prime.

It is a super-2 number, since 2×155050061² = 48081042832207442, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155050067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40850 + ... + 44483.

It is an arithmetic number, because the mean of its divisors is an integer number (20480160).

Almost surely, 2^155050061 is an apocalyptic number.

It is an amenable number.

155050061 is a deficient number, since it is larger than the sum of its proper divisors (8791219).

155050061 is an equidigital number, since it uses as much as digits as its factorization.

155050061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85435.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 155050061 is about 12451.9099338214. The cubic root of 155050061 is about 537.2263597945.

The spelling of 155050061 in words is "one hundred fifty-five million, fifty thousand, sixty-one".