155672055 has 48 divisors (see below), whose sum is σ = 336420864. Its totient is φ = 64693440.

The previous prime is 155672047. The next prime is 155672057. The reversal of 155672055 is 550276551.

It is a happy number.

It is not a de Polignac number, because 155672055 - 2³ = 155672047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155672057) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18999 + ... + 25928.

It is an arithmetic number, because the mean of its divisors is an integer number (7008768).

Almost surely, 2^155672055 is an apocalyptic number.

155672055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

155672055 is an abundant number, since it is smaller than the sum of its proper divisors (180748809).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155672055 is a wasteful number, since it uses less digits than its factorization.

155672055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44956 (or 44953 counting only the distinct ones).

The product of its (nonzero) digits is 52500, while the sum is 36.

The square root of 155672055 is about 12476.8607830656. The cubic root of 155672055 is about 537.9437748441.

The spelling of 155672055 in words is "one hundred fifty-five million, six hundred seventy-two thousand, fifty-five".