155550847 has 4 divisors (see below), whose sum is σ = 157741776. Its totient is φ = 153359920.

The previous prime is 155550827. The next prime is 155550851. The reversal of 155550847 is 748055551.

It is a happy number.

155550847 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 155550847 - 2¹⁵ = 155518079 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155550827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1095358 + ... + 1095499.

It is an arithmetic number, because the mean of its divisors is an integer number (39435444).

Almost surely, 2^155550847 is an apocalyptic number.

155550847 is a deficient number, since it is larger than the sum of its proper divisors (2190929).

155550847 is an equidigital number, since it uses as much as digits as its factorization.

155550847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2190928.

The product of its (nonzero) digits is 140000, while the sum is 40.

The square root of 155550847 is about 12472.0025256572. The cubic root of 155550847 is about 537.8041222498.

The spelling of 155550847 in words is "one hundred fifty-five million, five hundred fifty thousand, eight hundred forty-seven".