155550434 has 8 divisors (see below), whose sum is σ = 251273820. Its totient is φ = 71792496.

The previous prime is 155550413. The next prime is 155550457. The reversal of 155550434 is 434055551.

It can be written as a sum of positive squares in 2 ways, for example, as 135792409 + 19758025 = 11653^2 + 4445^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 155550434.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2991329 + ... + 2991380.

Almost surely, 2^155550434 is an apocalyptic number.

155550434 is a deficient number, since it is larger than the sum of its proper divisors (95723386).

155550434 is a wasteful number, since it uses less digits than its factorization.

155550434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5982724.

The product of its (nonzero) digits is 30000, while the sum is 32.

The square root of 155550434 is about 12471.9859685617. The cubic root of 155550434 is about 537.8036462783.

The spelling of 155550434 in words is "one hundred fifty-five million, five hundred fifty thousand, four hundred thirty-four".