55917240357 has 32 divisors (see below), whose sum is σ = 84001075200. Its totient is φ = 32779152000.

The previous prime is 55917240341. The next prime is 55917240373. The reversal of 55917240357 is 75304271955.

It is an interprime number because it is at equal distance from previous prime (55917240341) and next prime (55917240373).

It is not a de Polignac number, because 55917240357 - 2⁴ = 55917240341 is a prime.

It is a super-3 number, since 3×55917240357³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55917242357) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2134257 + ... + 2160297.

It is an arithmetic number, because the mean of its divisors is an integer number (2625033600).

Almost surely, 2^55917240357 is an apocalyptic number.

It is an amenable number.

55917240357 is a deficient number, since it is larger than the sum of its proper divisors (28083834843).

55917240357 is a wasteful number, since it uses less digits than its factorization.

55917240357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28185.

The product of its (nonzero) digits is 1323000, while the sum is 48.

The spelling of 55917240357 in words is "fifty-five billion, nine hundred seventeen million, two hundred forty thousand, three hundred fifty-seven".