155361255 has 32 divisors (see below), whose sum is σ = 284774400. Its totient is φ = 70851072.

The previous prime is 155361253. The next prime is 155361281. The reversal of 155361255 is 552163551.

It is not a de Polignac number, because 155361255 - 2¹ = 155361253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155361253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48751 + ... + 51839.

It is an arithmetic number, because the mean of its divisors is an integer number (8899200).

Almost surely, 2^155361255 is an apocalyptic number.

155361255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

155361255 is a deficient number, since it is larger than the sum of its proper divisors (129413145).

155361255 is a wasteful number, since it uses less digits than its factorization.

155361255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3583.

The product of its digits is 22500, while the sum is 33.

The square root of 155361255 is about 12464.3995041879. The cubic root of 155361255 is about 537.5855338912.

The spelling of 155361255 in words is "one hundred fifty-five million, three hundred sixty-one thousand, two hundred fifty-five".