7525492913 has 4 divisors (see below), whose sum is σ = 7531802148. Its totient is φ = 7519183680.

The previous prime is 7525492879. The next prime is 7525492927. The reversal of 7525492913 is 3192945257.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6020673649 + 1504819264 = 77593^2 + 38792^2 .

It is a cyclic number.

It is not a de Polignac number, because 7525492913 - 2¹⁴ = 7525476529 is a prime.

It is a super-2 number, since 2×7525492913² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7525492993) 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, 3152828 + ... + 3155213.

It is an arithmetic number, because the mean of its divisors is an integer number (1882950537).

Almost surely, 2^7525492913 is an apocalyptic number.

It is an amenable number.

7525492913 is a deficient number, since it is larger than the sum of its proper divisors (6309235).

7525492913 is a wasteful number, since it uses less digits than its factorization.

7525492913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6309234.

The product of its digits is 680400, while the sum is 47.

The square root of 7525492913 is about 86749.5989212630. The cubic root of 7525492913 is about 1959.6491209496.

The spelling of 7525492913 in words is "seven billion, five hundred twenty-five million, four hundred ninety-two thousand, nine hundred thirteen".