255400030 has 32 divisors (see below), whose sum is σ = 466754400. Its totient is φ = 100608000.

The previous prime is 255400009. The next prime is 255400039. The reversal of 255400030 is 30004552.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 255399980 and 255400007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255400039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242946 + ... + 243994.

It is an arithmetic number, because the mean of its divisors is an integer number (14586075).

Almost surely, 2^255400030 is an apocalyptic number.

255400030 is a deficient number, since it is larger than the sum of its proper divisors (211354370).

255400030 is a wasteful number, since it uses less digits than its factorization.

255400030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 255400030 is about 15981.2399393789. The cubic root of 255400030 is about 634.4639947460.

Adding to 255400030 its reverse (30004552), we get a palindrome (285404582).

The spelling of 255400030 in words is "two hundred fifty-five million, four hundred thousand, thirty".