75350520431 has 4 divisors (see below), whose sum is σ = 75591257232. Its totient is φ = 75109783632.

The previous prime is 75350520383. The next prime is 75350520451. The reversal of 75350520431 is 13402505357.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75350520431 is a prime.

It is a super-2 number, since 2×75350520431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75350520391 and 75350520400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75350520451) 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, 120367931 + ... + 120368556.

It is an arithmetic number, because the mean of its divisors is an integer number (18897814308).

Almost surely, 2^75350520431 is an apocalyptic number.

75350520431 is a deficient number, since it is larger than the sum of its proper divisors (240736801).

75350520431 is a wasteful number, since it uses less digits than its factorization.

75350520431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240736800.

The product of its (nonzero) digits is 63000, while the sum is 35.

The spelling of 75350520431 in words is "seventy-five billion, three hundred fifty million, five hundred twenty thousand, four hundred thirty-one".