155455953 has 8 divisors (see below), whose sum is σ = 207425568. Its totient is φ = 103561824.

The previous prime is 155455933. The next prime is 155455957. The reversal of 155455953 is 359554551.

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

It is not a de Polignac number, because 155455953 - 2⁶ = 155455889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155455957) 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, 13876 + ... + 22437.

It is an arithmetic number, because the mean of its divisors is an integer number (25928196).

Almost surely, 2^155455953 is an apocalyptic number.

It is an amenable number.

155455953 is a deficient number, since it is larger than the sum of its proper divisors (51969615).

155455953 is a wasteful number, since it uses less digits than its factorization.

155455953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37743.

The product of its digits is 337500, while the sum is 42.

The square root of 155455953 is about 12468.1976644582. The cubic root of 155455953 is about 537.6947372979.

The spelling of 155455953 in words is "one hundred fifty-five million, four hundred fifty-five thousand, nine hundred fifty-three".