11551000541 has 2 divisors, whose sum is σ = 11551000542. Its totient is φ = 11551000540.

The previous prime is 11551000529. The next prime is 11551000567. The reversal of 11551000541 is 14500015511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10208071225 + 1342929316 = 101035^2 + 36646^2 .

It is a cyclic number.

It is not a de Polignac number, because 11551000541 - 2⁶ = 11551000477 is a prime.

It is a super-2 number, since 2×11551000541² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11551000501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5775500270 + 5775500271.

It is an arithmetic number, because the mean of its divisors is an integer number (5775500271).

Almost surely, 2^11551000541 is an apocalyptic number.

It is an amenable number.

11551000541 is a deficient number, since it is larger than the sum of its proper divisors (1).

11551000541 is an equidigital number, since it uses as much as digits as its factorization.

11551000541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 500, while the sum is 23.

The spelling of 11551000541 in words is "eleven billion, five hundred fifty-one million, five hundred forty-one", and thus it is an aban number.