155030553 has 24 divisors (see below), whose sum is σ = 231678720. Its totient is φ = 99829440.

The previous prime is 155030543. The next prime is 155030567. The reversal of 155030553 is 355030551.

It is not a de Polignac number, because 155030553 - 2⁴ = 155030537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155030503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35968 + ... + 40046.

It is an arithmetic number, because the mean of its divisors is an integer number (9653280).

Almost surely, 2^155030553 is an apocalyptic number.

It is an amenable number.

155030553 is a deficient number, since it is larger than the sum of its proper divisors (76648167).

155030553 is a wasteful number, since it uses less digits than its factorization.

155030553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4229 (or 4226 counting only the distinct ones).

The product of its (nonzero) digits is 5625, while the sum is 27.

The square root of 155030553 is about 12451.1265755352. The cubic root of 155030553 is about 537.2038280365.

The spelling of 155030553 in words is "one hundred fifty-five million, thirty thousand, five hundred fifty-three".