785552426 has 4 divisors (see below), whose sum is σ = 1178328642. Its totient is φ = 392776212.

The previous prime is 785552413. The next prime is 785552429. The reversal of 785552426 is 624255587.

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

It can be written as a sum of positive squares in only one way, i.e., 428531401 + 357021025 = 20701^2 + 18895^2 .

It is a super-2 number, since 2×785552426² = 1234185227988970952, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (785552429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196388105 + ... + 196388108.

Almost surely, 2^785552426 is an apocalyptic number.

785552426 is a deficient number, since it is larger than the sum of its proper divisors (392776216).

785552426 is a wasteful number, since it uses less digits than its factorization.

785552426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392776215.

The product of its digits is 672000, while the sum is 44.

The square root of 785552426 is about 28027.7081831533. The cubic root of 785552426 is about 922.6954762842.

The spelling of 785552426 in words is "seven hundred eighty-five million, five hundred fifty-two thousand, four hundred twenty-six".