2555640142 has 8 divisors (see below), whose sum is σ = 4181956632. Its totient is φ = 1161654600.

The previous prime is 2555640133. The next prime is 2555640247. The reversal of 2555640142 is 2410465552.

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

It is a junction number, because it is equal to n+sod(n) for n = 2555640098 and 2555640107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58082709 + ... + 58082752.

It is an arithmetic number, because the mean of its divisors is an integer number (522744579).

Almost surely, 2^2555640142 is an apocalyptic number.

2555640142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2555640142 is a deficient number, since it is larger than the sum of its proper divisors (1626316490).

2555640142 is a wasteful number, since it uses less digits than its factorization.

2555640142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116165474.

The product of its (nonzero) digits is 48000, while the sum is 34.

The square root of 2555640142 is about 50553.3395731677. The cubic root of 2555640142 is about 1367.2037272798.

The spelling of 2555640142 in words is "two billion, five hundred fifty-five million, six hundred forty thousand, one hundred forty-two".