55509187070 has 16 divisors (see below), whose sum is σ = 99919260720. Its totient is φ = 22203069504.

The previous prime is 55509187039. The next prime is 55509187081. The reversal of 55509187070 is 7078190555.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 580154 + ... + 669026.

It is an arithmetic number, because the mean of its divisors is an integer number (6244953795).

Almost surely, 2^55509187070 is an apocalyptic number.

55509187070 is a deficient number, since it is larger than the sum of its proper divisors (44410073650).

55509187070 is a wasteful number, since it uses less digits than its factorization.

55509187070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151339.

The product of its (nonzero) digits is 441000, while the sum is 47.

The spelling of 55509187070 in words is "fifty-five billion, five hundred nine million, one hundred eighty-seven thousand, seventy".