755505431 has 4 divisors (see below), whose sum is σ = 755991600. Its totient is φ = 755019264.

The previous prime is 755505409. The next prime is 755505451. The reversal of 755505431 is 134505557.

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

It is a cyclic number.

It is not a de Polignac number, because 755505431 - 2⁶ = 755505367 is a prime.

It is a super-2 number, since 2×755505431² = 1141576912540991522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 755505391 and 755505400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (755505451) 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, 240746 + ... + 243863.

It is an arithmetic number, because the mean of its divisors is an integer number (188997900).

Almost surely, 2^755505431 is an apocalyptic number.

755505431 is a deficient number, since it is larger than the sum of its proper divisors (486169).

755505431 is a wasteful number, since it uses less digits than its factorization.

755505431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486168.

The product of its (nonzero) digits is 52500, while the sum is 35.

The square root of 755505431 is about 27486.4590480476. The cubic root of 755505431 is about 910.7779970681. Note that the first 3 decimals are identical.

The spelling of 755505431 in words is "seven hundred fifty-five million, five hundred five thousand, four hundred thirty-one".