155254455 has 64 divisors (see below), whose sum is σ = 297302400. Its totient is φ = 76584960.

The previous prime is 155254441. The next prime is 155254457. The reversal of 155254455 is 554452551.

155254455 is a `hidden beast` number, since 1 + 552 + 54 + 4 + 55 = 666.

It is not a de Polignac number, because 155254455 - 2⁶ = 155254391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155254457) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 139441 + ... + 140549.

It is an arithmetic number, because the mean of its divisors is an integer number (4645350).

Almost surely, 2^155254455 is an apocalyptic number.

155254455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

155254455 is a deficient number, since it is larger than the sum of its proper divisors (142047945).

155254455 is a wasteful number, since it uses less digits than its factorization.

155254455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201 (or 1195 counting only the distinct ones).

The product of its digits is 100000, while the sum is 36.

The square root of 155254455 is about 12460.1145660865. The cubic root of 155254455 is about 537.4623214980.

The spelling of 155254455 in words is "one hundred fifty-five million, two hundred fifty-four thousand, four hundred fifty-five".