505526505406 has 128 divisors (see below), whose sum is σ = 879273787392. Its totient is φ = 216297216000.

The previous prime is 505526505373. The next prime is 505526505409. The reversal of 505526505406 is 604505625505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505526505409) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 885335101 + ... + 885335671.

It is an arithmetic number, because the mean of its divisors is an integer number (6869326464).

Almost surely, 2^505526505406 is an apocalyptic number.

505526505406 is a deficient number, since it is larger than the sum of its proper divisors (373747281986).

505526505406 is a wasteful number, since it uses less digits than its factorization.

505526505406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098.

The product of its (nonzero) digits is 900000, while the sum is 43.

The spelling of 505526505406 in words is "five hundred five billion, five hundred twenty-six million, five hundred five thousand, four hundred six".