155528641 has 8 divisors (see below), whose sum is σ = 158905664. Its totient is φ = 152182800.

The previous prime is 155528573. The next prime is 155528683. The reversal of 155528641 is 146825551.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155528641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 155528641.

It is not an unprimeable number, because it can be changed into a prime (155528041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2431 + ... + 17803.

It is an arithmetic number, because the mean of its divisors is an integer number (19863208).

Almost surely, 2^155528641 is an apocalyptic number.

It is an amenable number.

155528641 is a deficient number, since it is larger than the sum of its proper divisors (3377023).

155528641 is a wasteful number, since it uses less digits than its factorization.

155528641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15591.

The product of its digits is 48000, while the sum is 37.

The square root of 155528641 is about 12471.1122599390. The cubic root of 155528641 is about 537.7785292322.

The spelling of 155528641 in words is "one hundred fifty-five million, five hundred twenty-eight thousand, six hundred forty-one".