1025420512 has 48 divisors (see below), whose sum is σ = 2113730640. Its totient is φ = 489029632.

The previous prime is 1025420503. The next prime is 1025420563. The reversal of 1025420512 is 2150245201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70368 + ... + 83680.

It is an arithmetic number, because the mean of its divisors is an integer number (44036055).

Almost surely, 2^1025420512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1025420512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1056865320).

1025420512 is an abundant number, since it is smaller than the sum of its proper divisors (1088310128).

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

1025420512 is a wasteful number, since it uses less digits than its factorization.

1025420512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13435 (or 13427 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 1025420512 is about 32022.1878078310. The cubic root of 1025420512 is about 1008.4027008596.

Adding to 1025420512 its reverse (2150245201), we get a palindrome (3175665713).

The spelling of 1025420512 in words is "one billion, twenty-five million, four hundred twenty thousand, five hundred twelve".