423153555 has 16 divisors (see below), whose sum is σ = 738595584. Its totient is φ = 205165280.

The previous prime is 423153551. The next prime is 423153557. The reversal of 423153555 is 555351324.

It is a happy number.

It is not a de Polignac number, because 423153555 - 2² = 423153551 is a prime.

It is a super-2 number, since 2×423153555² = 358117862218276050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (423153551) 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, 1282119 + ... + 1282448.

It is an arithmetic number, because the mean of its divisors is an integer number (46162224).

Almost surely, 2^423153555 is an apocalyptic number.

423153555 is a deficient number, since it is larger than the sum of its proper divisors (315442029).

423153555 is a wasteful number, since it uses less digits than its factorization.

423153555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2564586.

The product of its digits is 45000, while the sum is 33.

The square root of 423153555 is about 20570.6965122720. The cubic root of 423153555 is about 750.7568981056.

The spelling of 423153555 in words is "four hundred twenty-three million, one hundred fifty-three thousand, five hundred fifty-five".