1525420260 has 288 divisors, whose sum is σ = 5943974400. Its totient is φ = 307777536.

The previous prime is 1525420249. The next prime is 1525420261. The reversal of 1525420260 is 620245251.

It is not an unprimeable number, because it can be changed into a prime (1525420261) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 374716 + ... + 378764.

It is an arithmetic number, because the mean of its divisors is an integer number (20638800).

Almost surely, 2^1525420260 is an apocalyptic number.

1525420260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1525420260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2971987200).

1525420260 is an abundant number, since it is smaller than the sum of its proper divisors (4418554140).

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

1525420260 is a wasteful number, since it uses less digits than its factorization.

1525420260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4107 (or 4102 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1525420260 is about 39056.6288867844. The cubic root of 1525420260 is about 1151.1444838165.

The spelling of 1525420260 in words is "one billion, five hundred twenty-five million, four hundred twenty thousand, two hundred sixty".