4020555451 has 12 divisors (see below), whose sum is σ = 4513322016. Its totient is φ = 3577278320.

The previous prime is 4020555449. The next prime is 4020555479. The reversal of 4020555451 is 1545550204.

It is not a de Polignac number, because 4020555451 - 2¹ = 4020555449 is a prime.

It is a super-2 number, since 2×4020555451² = 32329732269131626802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4020555151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 347800 + ... + 359173.

It is an arithmetic number, because the mean of its divisors is an integer number (376110168).

Almost surely, 2^4020555451 is an apocalyptic number.

4020555451 is a deficient number, since it is larger than the sum of its proper divisors (492766565).

4020555451 is a wasteful number, since it uses less digits than its factorization.

4020555451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707042 (or 707031 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 31.

The square root of 4020555451 is about 63407.8500739459. The cubic root of 4020555451 is about 1590.1155528272.

The spelling of 4020555451 in words is "four billion, twenty million, five hundred fifty-five thousand, four hundred fifty-one".