75515013 has 12 divisors (see below), whose sum is σ = 124659808. Its totient is φ = 43151400.

The previous prime is 75514997. The next prime is 75515023. The reversal of 75515013 is 31051557.

It is not a de Polignac number, because 75515013 - 2⁴ = 75514997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75515023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 599263 + ... + 599388.

Almost surely, 2^75515013 is an apocalyptic number.

It is an amenable number.

75515013 is a deficient number, since it is larger than the sum of its proper divisors (49144795).

75515013 is a wasteful number, since it uses less digits than its factorization.

75515013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198664 (or 1198661 counting only the distinct ones).

The product of its (nonzero) digits is 2625, while the sum is 27.

The square root of 75515013 is about 8689.9374566219. The cubic root of 75515013 is about 422.6794177468.

It can be divided in two parts, 7551501 and 3, that added together give a square (7551504 = 2748²).

The spelling of 75515013 in words is "seventy-five million, five hundred fifteen thousand, thirteen".