541556631 has 32 divisors (see below), whose sum is σ = 1000281600. Its totient is φ = 281327040.

The previous prime is 541556627. The next prime is 541556651. The reversal of 541556631 is 136655145.

541556631 is a `hidden beast` number, since 5 + 4 + 15 + 5 + 6 + 631 = 666.

It is not a de Polignac number, because 541556631 - 2² = 541556627 is a prime.

It is a super-2 number, since 2×541556631² = 586567169160140322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (541556651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128166 + ... + 132323.

It is an arithmetic number, because the mean of its divisors is an integer number (31258800).

Almost surely, 2^541556631 is an apocalyptic number.

541556631 is a deficient number, since it is larger than the sum of its proper divisors (458724969).

541556631 is a wasteful number, since it uses less digits than its factorization.

541556631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260516 (or 260510 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 541556631 is about 23271.3693408875. The cubic root of 541556631 is about 815.1070059106.

The spelling of 541556631 in words is "five hundred forty-one million, five hundred fifty-six thousand, six hundred thirty-one".