155054898 has 48 divisors (see below), whose sum is σ = 351711360. Its totient is φ = 51193296.

The previous prime is 155054857. The next prime is 155054903. The reversal of 155054898 is 898450551.

It is a happy number.

155054898 is a `hidden beast` number, since 1 + 550 + 5 + 4 + 8 + 98 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51511 + ... + 54437.

It is an arithmetic number, because the mean of its divisors is an integer number (7327320).

Almost surely, 2^155054898 is an apocalyptic number.

155054898 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 155054898, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175855680).

155054898 is an abundant number, since it is smaller than the sum of its proper divisors (196656462).

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

155054898 is a wasteful number, since it uses less digits than its factorization.

155054898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3053 (or 3041 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 45.

The square root of 155054898 is about 12452.1041595387. The cubic root of 155054898 is about 537.2319462416.

The spelling of 155054898 in words is "one hundred fifty-five million, fifty-four thousand, eight hundred ninety-eight".