555640127 has 8 divisors (see below), whose sum is σ = 637279392. Its totient is φ = 474566400.

The previous prime is 555640103. The next prime is 555640133. The reversal of 555640127 is 721046555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-555640127 is a prime.

It is a super-2 number, since 2×555640127² = 617471901465152258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555640147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139274 + ... + 143207.

It is an arithmetic number, because the mean of its divisors is an integer number (79659924).

Almost surely, 2^555640127 is an apocalyptic number.

555640127 is a deficient number, since it is larger than the sum of its proper divisors (81639265).

555640127 is a wasteful number, since it uses less digits than its factorization.

555640127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282769.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 555640127 is about 23572.0200025369. The cubic root of 555640127 is about 822.1124035505.

The spelling of 555640127 in words is "five hundred fifty-five million, six hundred forty thousand, one hundred twenty-seven".