55209603357 has 12 divisors (see below), whose sum is σ = 82319695744. Its totient is φ = 35619098760.

The previous prime is 55209603347. The next prime is 55209603403. The reversal of 55209603357 is 75330690255.

It is a happy number.

55209603357 is a `hidden beast` number, since 5 + 5 + 2 + 0 + 9 + 603 + 35 + 7 = 666.

It is not a de Polignac number, because 55209603357 - 2¹¹ = 55209601309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55209603347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98941663 + ... + 98942220.

Almost surely, 2^55209603357 is an apocalyptic number.

It is an amenable number.

55209603357 is a deficient number, since it is larger than the sum of its proper divisors (27110092387).

55209603357 is a wasteful number, since it uses less digits than its factorization.

55209603357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197883920 (or 197883917 counting only the distinct ones).

The product of its (nonzero) digits is 850500, while the sum is 45.

The spelling of 55209603357 in words is "fifty-five billion, two hundred nine million, six hundred three thousand, three hundred fifty-seven".