4055521031 has 4 divisors (see below), whose sum is σ = 4055666064. Its totient is φ = 4055376000.

The previous prime is 4055521021. The next prime is 4055521033. The reversal of 4055521031 is 1301255504.

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

It is a cyclic number.

It is not a de Polignac number, because 4055521031 - 2¹⁸ = 4055258887 is a prime.

It is a super-2 number, since 2×4055521031² = 32894501665766605922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4055521033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15770 + ... + 91431.

It is an arithmetic number, because the mean of its divisors is an integer number (1013916516).

Almost surely, 2^4055521031 is an apocalyptic number.

4055521031 is a deficient number, since it is larger than the sum of its proper divisors (145033).

4055521031 is a wasteful number, since it uses less digits than its factorization.

4055521031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145032.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 4055521031 is about 63682.9728498914. The cubic root of 4055521031 is about 1594.7118422843.

Adding to 4055521031 its reverse (1301255504), we get a palindrome (5356776535).

The spelling of 4055521031 in words is "four billion, fifty-five million, five hundred twenty-one thousand, thirty-one".