155030554 has 16 divisors (see below), whose sum is σ = 268970688. Its totient is φ = 65640672.

The previous prime is 155030543. The next prime is 155030567. The reversal of 155030554 is 455030551.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 65547 + ... + 67870.

It is an arithmetic number, because the mean of its divisors is an integer number (16810668).

Almost surely, 2^155030554 is an apocalyptic number.

155030554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

155030554 is a deficient number, since it is larger than the sum of its proper divisors (113940134).

155030554 is a wasteful number, since it uses less digits than its factorization.

155030554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133509.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 155030554 is about 12451.1266156923. The cubic root of 155030554 is about 537.2038291915.

The spelling of 155030554 in words is "one hundred fifty-five million, thirty thousand, five hundred fifty-four".