1825488457 has 4 divisors (see below), whose sum is σ = 1965910660. Its totient is φ = 1685066256.

The previous prime is 1825488451. The next prime is 1825488463. The reversal of 1825488457 is 7548845281.

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

It is an interprime number because it is at equal distance from previous prime (1825488451) and next prime (1825488463).

It can be written as a sum of positive squares in 2 ways, for example, as 1201038336 + 624450121 = 34656^2 + 24989^2 .

It is a cyclic number.

It is not a de Polignac number, because 1825488457 - 2¹¹ = 1825486409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1825488451) 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, 70211082 + ... + 70211107.

It is an arithmetic number, because the mean of its divisors is an integer number (491477665).

Almost surely, 2^1825488457 is an apocalyptic number.

It is an amenable number.

1825488457 is a deficient number, since it is larger than the sum of its proper divisors (140422203).

1825488457 is a wasteful number, since it uses less digits than its factorization.

1825488457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140422202.

The product of its digits is 2867200, while the sum is 52.

The square root of 1825488457 is about 42725.7353008699. The cubic root of 1825488457 is about 1222.1552106367.

The spelling of 1825488457 in words is "one billion, eight hundred twenty-five million, four hundred eighty-eight thousand, four hundred fifty-seven".