155660053 has 2 divisors, whose sum is σ = 155660054. Its totient is φ = 155660052.

The previous prime is 155660051. The next prime is 155660101. The reversal of 155660053 is 350066551.

155660053 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87647044 + 68013009 = 9362^2 + 8247^2 .

It is an emirp because it is prime and its reverse (350066551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 155660053 - 2¹ = 155660051 is a prime.

Together with 155660051, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 155659997 and 155660024.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155660051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77830026 + 77830027.

It is an arithmetic number, because the mean of its divisors is an integer number (77830027).

Almost surely, 2^155660053 is an apocalyptic number.

It is an amenable number.

155660053 is a deficient number, since it is larger than the sum of its proper divisors (1).

155660053 is an equidigital number, since it uses as much as digits as its factorization.

155660053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 155660053 is about 12476.3798034526. The cubic root of 155660053 is about 537.9299496971.

The spelling of 155660053 in words is "one hundred fifty-five million, six hundred sixty thousand, fifty-three".