2556510052 has 6 divisors (see below), whose sum is σ = 4473892598. Its totient is φ = 1278255024.

The previous prime is 2556510043. The next prime is 2556510083. The reversal of 2556510052 is 2500156552.

It can be written as a sum of positive squares in only one way, i.e., 2404333156 + 152176896 = 49034^2 + 12336^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2556509996 and 2556510023.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 319563753 + ... + 319563760.

Almost surely, 2^2556510052 is an apocalyptic number.

It is an amenable number.

2556510052 is a deficient number, since it is larger than the sum of its proper divisors (1917382546).

2556510052 is a wasteful number, since it uses less digits than its factorization.

2556510052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639127517 (or 639127515 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 2556510052 is about 50561.9427237522. The cubic root of 2556510052 is about 1367.3588363989.

The spelling of 2556510052 in words is "two billion, five hundred fifty-six million, five hundred ten thousand, fifty-two".