1235352525 has 72 divisors (see below), whose sum is σ = 2259667872. Its totient is φ = 595056000.

The previous prime is 1235352523. The next prime is 1235352529. The reversal of 1235352525 is 5252535321.

It is not a de Polignac number, because 1235352525 - 2¹ = 1235352523 is a prime.

It is a super-2 number, since 2×1235352525² = 3052191722047751250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1235352523) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1787430 + ... + 1788120.

It is an arithmetic number, because the mean of its divisors is an integer number (31384276).

Almost surely, 2^1235352525 is an apocalyptic number.

1235352525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1235352525 is a deficient number, since it is larger than the sum of its proper divisors (1024315347).

1235352525 is a wasteful number, since it uses less digits than its factorization.

1235352525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923 (or 907 counting only the distinct ones).

The product of its digits is 45000, while the sum is 33.

The square root of 1235352525 is about 35147.5820647737. The cubic root of 1235352525 is about 1072.9931985416.

Adding to 1235352525 its reverse (5252535321), we get a palindrome (6487887846).

The spelling of 1235352525 in words is "one billion, two hundred thirty-five million, three hundred fifty-two thousand, five hundred twenty-five".