2556033404 has 6 divisors (see below), whose sum is σ = 4473058464. Its totient is φ = 1278016700.

The previous prime is 2556033397. The next prime is 2556033409. The reversal of 2556033404 is 4043306552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2556033409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 319504172 + ... + 319504179.

It is an arithmetic number, because the mean of its divisors is an integer number (745509744).

Almost surely, 2^2556033404 is an apocalyptic number.

It is an amenable number.

2556033404 is a deficient number, since it is larger than the sum of its proper divisors (1917025060).

2556033404 is a wasteful number, since it uses less digits than its factorization.

2556033404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639008355 (or 639008353 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 32.

The square root of 2556033404 is about 50557.2289984331. The cubic root of 2556033404 is about 1367.2738521364.

Adding to 2556033404 its reverse (4043306552), we get a palindrome (6599339956).

The spelling of 2556033404 in words is "two billion, five hundred fifty-six million, thirty-three thousand, four hundred four".