1825252420211 has 4 divisors (see below), whose sum is σ = 1991184458424. Its totient is φ = 1659320382000.

The previous prime is 1825252420163. The next prime is 1825252420213. The reversal of 1825252420211 is 1120242525281.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1825252420211 is a prime.

It is a super-2 number, since 2×1825252420211² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1825252420213) 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, 82966019090 + ... + 82966019111.

It is an arithmetic number, because the mean of its divisors is an integer number (497796114606).

Almost surely, 2^{1825252420211} is an apocalyptic number.

1825252420211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1825252420211 is a deficient number, since it is larger than the sum of its proper divisors (165932038213).

1825252420211 is a wasteful number, since it uses less digits than its factorization.

1825252420211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165932038212.

The product of its (nonzero) digits is 25600, while the sum is 35.

Adding to 1825252420211 its reverse (1120242525281), we get a palindrome (2945494945492).

The spelling of 1825252420211 in words is "one trillion, eight hundred twenty-five billion, two hundred fifty-two million, four hundred twenty thousand, two hundred eleven".