75925513 has 2 divisors, whose sum is σ = 75925514. Its totient is φ = 75925512.

The previous prime is 75925511. The next prime is 75925529. The reversal of 75925513 is 31552957.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75898944 + 26569 = 8712^2 + 163^2 .

It is a cyclic number.

It is not a de Polignac number, because 75925513 - 2¹ = 75925511 is a prime.

Together with 75925511, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (75925511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37962756 + 37962757.

It is an arithmetic number, because the mean of its divisors is an integer number (37962757).

Almost surely, 2^75925513 is an apocalyptic number.

It is an amenable number.

75925513 is a deficient number, since it is larger than the sum of its proper divisors (1).

75925513 is an equidigital number, since it uses as much as digits as its factorization.

75925513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47250, while the sum is 37.

The square root of 75925513 is about 8713.5247173575. The cubic root of 75925513 is about 423.4439299496.

The spelling of 75925513 in words is "seventy-five million, nine hundred twenty-five thousand, five hundred thirteen".