155506413 has 16 divisors (see below), whose sum is σ = 210637440. Its totient is φ = 102035904.

The previous prime is 155506391. The next prime is 155506433. The reversal of 155506413 is 314605551.

It is not a de Polignac number, because 155506413 - 2⁶ = 155506349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155506433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52003 + ... + 54911.

It is an arithmetic number, because the mean of its divisors is an integer number (13164840).

Almost surely, 2^155506413 is an apocalyptic number.

It is an amenable number.

155506413 is a deficient number, since it is larger than the sum of its proper divisors (55131027).

155506413 is a wasteful number, since it uses less digits than its factorization.

155506413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3188.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 155506413 is about 12470.2210485621. The cubic root of 155506413 is about 537.7529084193.

The spelling of 155506413 in words is "one hundred fifty-five million, five hundred six thousand, four hundred thirteen".