1425102525 has 144 divisors (see below), whose sum is σ = 3323090880. Its totient is φ = 592099200.

The previous prime is 1425102521. The next prime is 1425102527. The reversal of 1425102525 is 5252015241.

1425102525 is a `hidden beast` number, since 14 + 25 + 102 + 525 = 666.

It is not a de Polignac number, because 1425102525 - 2² = 1425102521 is a prime.

It is a super-2 number, since 2×1425102525² = 4061834413522751250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425102521) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 361867 + ... + 365783.

It is an arithmetic number, because the mean of its divisors is an integer number (23077020).

Almost surely, 2^1425102525 is an apocalyptic number.

1425102525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1425102525 is an abundant number, since it is smaller than the sum of its proper divisors (1897988355).

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

1425102525 is a wasteful number, since it uses less digits than its factorization.

1425102525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3961 (or 3943 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 1425102525 is about 37750.5301287280. The cubic root of 1425102525 is about 1125.3355443545.

Adding to 1425102525 its reverse (5252015241), we get a palindrome (6677117766).

The spelling of 1425102525 in words is "one billion, four hundred twenty-five million, one hundred two thousand, five hundred twenty-five".