1025822520 has 48 divisors (see below), whose sum is σ = 3333924360. Its totient is φ = 273552576.

The previous prime is 1025822507. The next prime is 1025822527. The reversal of 1025822520 is 252285201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025822527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1424394 + ... + 1425113.

Almost surely, 2^1025822520 is an apocalyptic number.

1025822520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1025822520 is an abundant number, since it is smaller than the sum of its proper divisors (2308101840).

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

1025822520 is a wasteful number, since it uses less digits than its factorization.

1025822520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2849524 (or 2849517 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 1025822520 is about 32028.4642154444. The cubic root of 1025822520 is about 1008.5344624097.

The spelling of 1025822520 in words is "one billion, twenty-five million, eight hundred twenty-two thousand, five hundred twenty".