1425252528 has 240 divisors, whose sum is σ = 4984252416. Its totient is φ = 370759680.

The previous prime is 1425252481. The next prime is 1425252539. The reversal of 1425252528 is 8252525241.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1425252492 and 1425252501.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 529875 + ... + 532557.

Almost surely, 2^1425252528 is an apocalyptic number.

1425252528 is a gapful number since it is divisible by the number (18) 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 1425252528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2492126208).

1425252528 is an abundant number, since it is smaller than the sum of its proper divisors (3558999888).

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

1425252528 is a wasteful number, since it uses less digits than its factorization.

1425252528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2752 (or 2743 counting only the distinct ones).

The product of its digits is 64000, while the sum is 36.

The square root of 1425252528 is about 37752.5168432517. The cubic root of 1425252528 is about 1125.3750263759.

Adding to 1425252528 its reverse (8252525241), we get a palindrome (9677777769).

The spelling of 1425252528 in words is "one billion, four hundred twenty-five million, two hundred fifty-two thousand, five hundred twenty-eight".