1925581248 has 70 divisors (see below), whose sum is σ = 5708041416. Its totient is φ = 641858688.

The previous prime is 1925581243. The next prime is 1925581249. The reversal of 1925581248 is 8421855291.

1925581248 is a `hidden beast` number, since 1 + 9 + 25 + 581 + 2 + 48 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1925581243) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 180540 + ... + 190907.

Almost surely, 2^1925581248 is an apocalyptic number.

1925581248 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1925581248 is an abundant number, since it is smaller than the sum of its proper divisors (3782460168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1925581248 is an equidigital number, since it uses as much as digits as its factorization.

1925581248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371471 (or 371452 counting only the distinct ones).

The product of its digits is 230400, while the sum is 45.

The square root of 1925581248 is about 43881.4453727313. The cubic root of 1925581248 is about 1244.0961592042.

The spelling of 1925581248 in words is "one billion, nine hundred twenty-five million, five hundred eighty-one thousand, two hundred forty-eight".