2056542413 has 4 divisors (see below), whose sum is σ = 2056657728. Its totient is φ = 2056427100.

The previous prime is 2056542373. The next prime is 2056542419. The reversal of 2056542413 is 3142456502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3142456502 = 2 ⋅1571228251.

It is a cyclic number.

It is not a de Polignac number, because 2056542413 - 2¹² = 2056538317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2056542413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2056542419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24581 + ... + 68682.

It is an arithmetic number, because the mean of its divisors is an integer number (514164432).

Almost surely, 2^2056542413 is an apocalyptic number.

It is an amenable number.

2056542413 is a deficient number, since it is larger than the sum of its proper divisors (115315).

2056542413 is an equidigital number, since it uses as much as digits as its factorization.

2056542413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115314.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 2056542413 is about 45349.1170035316. The cubic root of 2056542413 is about 1271.6840479874.

Adding to 2056542413 its reverse (3142456502), we get a palindrome (5198998915).

The spelling of 2056542413 in words is "two billion, fifty-six million, five hundred forty-two thousand, four hundred thirteen".