785504255 has 16 divisors (see below), whose sum is σ = 962505504. Its totient is φ = 615189120.

The previous prime is 785504243. The next prime is 785504267. The reversal of 785504255 is 552405587.

It is an interprime number because it is at equal distance from previous prime (785504243) and next prime (785504267).

It is not a de Polignac number, because 785504255 - 2¹⁸ = 785242111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127097 + ... + 133133.

It is an arithmetic number, because the mean of its divisors is an integer number (60156594).

Almost surely, 2^785504255 is an apocalyptic number.

785504255 is a deficient number, since it is larger than the sum of its proper divisors (177001249).

785504255 is a wasteful number, since it uses less digits than its factorization.

785504255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6586.

The product of its (nonzero) digits is 280000, while the sum is 41.

The square root of 785504255 is about 28026.8488239402. The cubic root of 785504255 is about 922.6766156408.

The spelling of 785504255 in words is "seven hundred eighty-five million, five hundred four thousand, two hundred fifty-five".