1825242541 has 4 divisors (see below), whose sum is σ = 1836440512. Its totient is φ = 1814044572.

The previous prime is 1825242539. The next prime is 1825242599. The reversal of 1825242541 is 1452425281.

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 an emirpimes, since its reverse is a distinct semiprime: 1452425281 = 601 ⋅2416681.

It is a cyclic number.

It is not a de Polignac number, because 1825242541 - 2¹ = 1825242539 is a prime.

It is a super-2 number, since 2×1825242541² = 6663020666952273362, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1825242497 and 1825242506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1825242941) 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, 5598741 + ... + 5599066.

It is an arithmetic number, because the mean of its divisors is an integer number (459110128).

Almost surely, 2^1825242541 is an apocalyptic number.

It is an amenable number.

1825242541 is a deficient number, since it is larger than the sum of its proper divisors (11197971).

1825242541 is a wasteful number, since it uses less digits than its factorization.

1825242541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11197970.

The product of its digits is 25600, while the sum is 34.

The square root of 1825242541 is about 42722.8573599660. The cubic root of 1825242541 is about 1222.1003283363.

The spelling of 1825242541 in words is "one billion, eight hundred twenty-five million, two hundred forty-two thousand, five hundred forty-one".