155505713 has 8 divisors (see below), whose sum is σ = 170592480. Its totient is φ = 140577280.

The previous prime is 155505683. The next prime is 155505719. The reversal of 155505713 is 317505551.

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

It is a cyclic number.

It is not a de Polignac number, because 155505713 - 2²² = 151311409 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 155505713.

It is not an unprimeable number, because it can be changed into a prime (155505719) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 37520 + ... + 41457.

It is an arithmetic number, because the mean of its divisors is an integer number (21324060).

Almost surely, 2^155505713 is an apocalyptic number.

It is an amenable number.

155505713 is a deficient number, since it is larger than the sum of its proper divisors (15086767).

155505713 is a wasteful number, since it uses less digits than its factorization.

155505713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79167.

The product of its (nonzero) digits is 13125, while the sum is 32.

The square root of 155505713 is about 12470.1929816663. The cubic root of 155505713 is about 537.7521015338.

The spelling of 155505713 in words is "one hundred fifty-five million, five hundred five thousand, seven hundred thirteen".