2541521156 has 12 divisors (see below), whose sum is σ = 4451153868. Its totient is φ = 1269762912.

The previous prime is 2541521123. The next prime is 2541521159. The reversal of 2541521156 is 6511251452.

It can be written as a sum of positive squares in 2 ways, for example, as 1106626756 + 1434894400 = 33266^2 + 37880^2 .

It is not an unprimeable number, because it can be changed into a prime (2541521159) 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, 243671 + ... + 253886.

It is an arithmetic number, because the mean of its divisors is an integer number (370929489).

Almost surely, 2^2541521156 is an apocalyptic number.

It is an amenable number.

2541521156 is a deficient number, since it is larger than the sum of its proper divisors (1909632712).

2541521156 is a wasteful number, since it uses less digits than its factorization.

2541521156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498838 (or 498836 counting only the distinct ones).

The product of its digits is 12000, while the sum is 32.

The square root of 2541521156 is about 50413.5017232487. The cubic root of 2541521156 is about 1364.6813079697.

The spelling of 2541521156 in words is "two billion, five hundred forty-one million, five hundred twenty-one thousand, one hundred fifty-six".