155552005 has 16 divisors (see below), whose sum is σ = 213600384. Its totient is φ = 106528320.

The previous prime is 155551997. The next prime is 155552011. The reversal of 155552005 is 500255551.

It is a happy number.

It is not a de Polignac number, because 155552005 - 2³ = 155551997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30574 + ... + 35296.

It is an arithmetic number, because the mean of its divisors is an integer number (13350024).

Almost surely, 2^155552005 is an apocalyptic number.

It is an amenable number.

155552005 is a deficient number, since it is larger than the sum of its proper divisors (58048379).

155552005 is an equidigital number, since it uses as much as digits as its factorization.

155552005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5676.

The product of its (nonzero) digits is 6250, while the sum is 28.

The square root of 155552005 is about 12472.0489495512. The cubic root of 155552005 is about 537.8054568094.

The spelling of 155552005 in words is "one hundred fifty-five million, five hundred fifty-two thousand, five".