75046513 has 2 divisors, whose sum is σ = 75046514. Its totient is φ = 75046512.

The previous prime is 75046511. The next prime is 75046571. The reversal of 75046513 is 31564057.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73753744 + 1292769 = 8588^2 + 1137^2 .

It is a cyclic number.

It is not a de Polignac number, because 75046513 - 2¹ = 75046511 is a prime.

It is a super-2 number, since 2×75046513² = 11263958226918338, which contains 22 as substring.

Together with 75046511, it forms a pair of twin primes.

It is equal to p_4396810 and since 75046513 and 4396810 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (75046511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37523256 + 37523257.

It is an arithmetic number, because the mean of its divisors is an integer number (37523257).

Almost surely, 2^75046513 is an apocalyptic number.

It is an amenable number.

75046513 is a deficient number, since it is larger than the sum of its proper divisors (1).

75046513 is an equidigital number, since it uses as much as digits as its factorization.

75046513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 75046513 is about 8662.9390509226. The cubic root of 75046513 is about 421.8034937096.

The spelling of 75046513 in words is "seventy-five million, forty-six thousand, five hundred thirteen".