13555555507 has 16 divisors (see below), whose sum is σ = 14822039232. Its totient is φ = 12321469440.

The previous prime is 13555555483. The next prime is 13555555537. The reversal of 13555555507 is 70555555531.

It is a cyclic number.

It is not a de Polignac number, because 13555555507 - 2³¹ = 11408071859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13555555537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 782443 + ... + 799579.

It is an arithmetic number, because the mean of its divisors is an integer number (926377452).

Almost surely, 2^13555555507 is an apocalyptic number.

13555555507 is a deficient number, since it is larger than the sum of its proper divisors (1266483725).

13555555507 is a wasteful number, since it uses less digits than its factorization.

13555555507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18078.

The product of its (nonzero) digits is 1640625, while the sum is 46.

The spelling of 13555555507 in words is "thirteen billion, five hundred fifty-five million, five hundred fifty-five thousand, five hundred seven".