3556257540 has 96 divisors (see below), whose sum is σ = 11501771904. Its totient is φ = 811407360.

The previous prime is 3556257533. The next prime is 3556257563. The reversal of 3556257540 is 457526553.

3556257540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 3556257492 and 3556257501.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 147259 + ... + 169698.

It is an arithmetic number, because the mean of its divisors is an integer number (119810124).

Almost surely, 2^3556257540 is an apocalyptic number.

3556257540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3556257540 is an abundant number, since it is smaller than the sum of its proper divisors (7945514364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3556257540 is a wasteful number, since it uses less digits than its factorization.

3556257540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316997 (or 316995 counting only the distinct ones).

The product of its (nonzero) digits is 630000, while the sum is 42.

The square root of 3556257540 is about 59634.3654279980. The cubic root of 3556257540 is about 1526.3860965770.

The spelling of 3556257540 in words is "three billion, five hundred fifty-six million, two hundred fifty-seven thousand, five hundred forty".