1025725320 has 96 divisors (see below), whose sum is σ = 3337701120. Its totient is φ = 273191040.

The previous prime is 1025725307. The next prime is 1025725361. The reversal of 1025725320 is 235275201.

It is a super-2 number, since 2×1025725320² = 2104224864178204800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 463657 + ... + 465863.

It is an arithmetic number, because the mean of its divisors is an integer number (34767720).

Almost surely, 2^1025725320 is an apocalyptic number.

1025725320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1025725320 is an abundant number, since it is smaller than the sum of its proper divisors (2311975800).

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

1025725320 is a wasteful number, since it uses less digits than its factorization.

1025725320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3515 (or 3508 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 1025725320 is about 32026.9467792358. The cubic root of 1025725320 is about 1008.5026074367.

The spelling of 1025725320 in words is "one billion, twenty-five million, seven hundred twenty-five thousand, three hundred twenty".