1825487542 has 4 divisors (see below), whose sum is σ = 2738231316. Its totient is φ = 912743770.

The previous prime is 1825487539. The next prime is 1825487579. The reversal of 1825487542 is 2457845281.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2457845281 = 659 ⋅3729659.

It is a junction number, because it is equal to n+sod(n) for n = 1825487492 and 1825487501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 456371884 + ... + 456371887.

It is an arithmetic number, because the mean of its divisors is an integer number (684557829).

Almost surely, 2^1825487542 is an apocalyptic number.

1825487542 is a deficient number, since it is larger than the sum of its proper divisors (912743774).

1825487542 is an equidigital number, since it uses as much as digits as its factorization.

1825487542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912743773.

The product of its digits is 716800, while the sum is 46.

The square root of 1825487542 is about 42725.7245930365. The cubic root of 1825487542 is about 1222.1550064407.

The spelling of 1825487542 in words is "one billion, eight hundred twenty-five million, four hundred eighty-seven thousand, five hundred forty-two".