2521540334 has 16 divisors (see below), whose sum is σ = 4008198816. Its totient is φ = 1185600000.

The previous prime is 2521540247. The next prime is 2521540381. The reversal of 2521540334 is 4330451252.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2521540297 and 2521540306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9959 + ... + 71709.

It is an arithmetic number, because the mean of its divisors is an integer number (250512426).

Almost surely, 2^2521540334 is an apocalyptic number.

2521540334 is a deficient number, since it is larger than the sum of its proper divisors (1486658482).

2521540334 is a wasteful number, since it uses less digits than its factorization.

2521540334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62971.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 2521540334 is about 50214.9413421942. The cubic root of 2521540334 is about 1361.0956305916.

Adding to 2521540334 its reverse (4330451252), we get a palindrome (6851991586).

The spelling of 2521540334 in words is "two billion, five hundred twenty-one million, five hundred forty thousand, three hundred thirty-four".