155422553 has 16 divisors (see below), whose sum is σ = 186048576. Its totient is φ = 127957440.

The previous prime is 155422543. The next prime is 155422577. The reversal of 155422553 is 355224551.

155422553 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 155422553 - 2¹² = 155418457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (155422543) 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, 2675 + ... + 17832.

It is an arithmetic number, because the mean of its divisors is an integer number (11628036).

Almost surely, 2^155422553 is an apocalyptic number.

155422553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

155422553 is a deficient number, since it is larger than the sum of its proper divisors (30626023).

155422553 is a wasteful number, since it uses less digits than its factorization.

155422553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20584.

The product of its digits is 30000, while the sum is 32.

The square root of 155422553 is about 12466.8581848034. The cubic root of 155422553 is about 537.6562263023.

The spelling of 155422553 in words is "one hundred fifty-five million, four hundred twenty-two thousand, five hundred fifty-three".