1201504525 has 24 divisors (see below), whose sum is σ = 1606232264. Its totient is φ = 886291200.

The previous prime is 1201504523. The next prime is 1201504559. The reversal of 1201504525 is 5254051021.

It can be written as a sum of positive squares in 12 ways, for example, as 931592484 + 269912041 = 30522^2 + 16429^2 .

It is not a de Polignac number, because 1201504525 - 2¹ = 1201504523 is a prime.

It is a super-2 number, since 2×1201504525² = 2887226247190951250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 1201504525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201504523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 447487 + ... + 450163.

Almost surely, 2^1201504525 is an apocalyptic number.

It is an amenable number.

1201504525 is a deficient number, since it is larger than the sum of its proper divisors (404727739).

1201504525 is a wasteful number, since it uses less digits than its factorization.

1201504525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4081 (or 4076 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 1201504525 is about 34662.7252967795. The cubic root of 1201504525 is about 1063.1024938143.

Adding to 1201504525 its reverse (5254051021), we get a palindrome (6455555546).

The spelling of 1201504525 in words is "one billion, two hundred one million, five hundred four thousand, five hundred twenty-five".