4001372555 has 4 divisors (see below), whose sum is σ = 4801647072. Its totient is φ = 3201098040.

The previous prime is 4001372539. The next prime is 4001372591. The reversal of 4001372555 is 5552731004.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4001372555 - 2⁴ = 4001372539 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400137251 + ... + 400137260.

It is an arithmetic number, because the mean of its divisors is an integer number (1200411768).

Almost surely, 2^4001372555 is an apocalyptic number.

4001372555 is a deficient number, since it is larger than the sum of its proper divisors (800274517).

4001372555 is an equidigital number, since it uses as much as digits as its factorization.

4001372555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800274516.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 4001372555 is about 63256.4032727122. The cubic root of 4001372555 is about 1587.5825974756.

The spelling of 4001372555 in words is "four billion, one million, three hundred seventy-two thousand, five hundred fifty-five".