155504455 has 16 divisors (see below), whose sum is σ = 196761600. Its totient is φ = 117655200.

The previous prime is 155504399. The next prime is 155504473. The reversal of 155504455 is 554405551.

155504455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 155504455 - 2¹¹ = 155502407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 155504455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78730 + ... + 80680.

It is an arithmetic number, because the mean of its divisors is an integer number (12297600).

Almost surely, 2^155504455 is an apocalyptic number.

155504455 is a deficient number, since it is larger than the sum of its proper divisors (41257145).

155504455 is a wasteful number, since it uses less digits than its factorization.

155504455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2814.

The product of its (nonzero) digits is 50000, while the sum is 34.

The square root of 155504455 is about 12470.1425412864. The cubic root of 155504455 is about 537.7506514392.

The spelling of 155504455 in words is "one hundred fifty-five million, five hundred four thousand, four hundred fifty-five".