155498855 has 16 divisors (see below), whose sum is σ = 192931200. Its totient is φ = 120234240.

The previous prime is 155498843. The next prime is 155498867. The reversal of 155498855 is 558894551.

It is a happy number.

155498855 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (155498843) and next prime (155498867).

It is not a de Polignac number, because 155498855 - 2⁴ = 155498839 is a prime.

It is a super-2 number, since 2×155498855² = 48359787812622050, which contains 22 as substring.

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, 18866 + ... + 25824.

It is an arithmetic number, because the mean of its divisors is an integer number (12058200).

Almost surely, 2^155498855 is an apocalyptic number.

155498855 is a deficient number, since it is larger than the sum of its proper divisors (37432345).

155498855 is a wasteful number, since it uses less digits than its factorization.

155498855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7114.

The product of its digits is 1440000, while the sum is 50.

The square root of 155498855 is about 12469.9180029381. The cubic root of 155498855 is about 537.7441962334.

The spelling of 155498855 in words is "one hundred fifty-five million, four hundred ninety-eight thousand, eight hundred fifty-five".