255100042 has 16 divisors (see below), whose sum is σ = 403286400. Its totient is φ = 120687840.

The previous prime is 255100031. The next prime is 255100063. The reversal of 255100042 is 240001552.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 255099992 and 255100019.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30934 + ... + 38302.

It is an arithmetic number, because the mean of its divisors is an integer number (25205400).

Almost surely, 2^255100042 is an apocalyptic number.

255100042 is a deficient number, since it is larger than the sum of its proper divisors (148186358).

255100042 is a wasteful number, since it uses less digits than its factorization.

255100042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8301.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 255100042 is about 15971.8515520274. The cubic root of 255100042 is about 634.2154876577.

Adding to 255100042 its reverse (240001552), we get a palindrome (495101594).

The spelling of 255100042 in words is "two hundred fifty-five million, one hundred thousand, forty-two".