55370691489 has 16 divisors (see below), whose sum is σ = 74674820160. Its totient is φ = 36490375680.

The previous prime is 55370691473. The next prime is 55370691503. The reversal of 55370691489 is 98419607355.

55370691489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55370691489 - 2⁴ = 55370691473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55370691589) 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, 1221154 + ... + 1265684.

It is an arithmetic number, because the mean of its divisors is an integer number (4667176260).

Almost surely, 2^55370691489 is an apocalyptic number.

It is an amenable number.

55370691489 is a deficient number, since it is larger than the sum of its proper divisors (19304128671).

55370691489 is a wasteful number, since it uses less digits than its factorization.

55370691489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49280.

The product of its (nonzero) digits is 8164800, while the sum is 57.

The spelling of 55370691489 in words is "fifty-five billion, three hundred seventy million, six hundred ninety-one thousand, four hundred eighty-nine".