1253525004 has 24 divisors (see below), whose sum is σ = 3249879920. Its totient is φ = 417841632.

The previous prime is 1253525003. The next prime is 1253525017. The reversal of 1253525004 is 4005253521.

It is a happy number.

1253525004 is a `hidden beast` number, since 125 + 35 + 2 + 500 + 4 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (1253525003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5803249 + ... + 5803464.

Almost surely, 2^1253525004 is an apocalyptic number.

It is an amenable number.

1253525004 is an abundant number, since it is smaller than the sum of its proper divisors (1996354916).

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

1253525004 is a wasteful number, since it uses less digits than its factorization.

1253525004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11606726 (or 11606718 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 1253525004 is about 35405.1550483824. The cubic root of 1253525004 is about 1078.2289801263.

Adding to 1253525004 its reverse (4005253521), we get a palindrome (5258778525).

The spelling of 1253525004 in words is "one billion, two hundred fifty-three million, five hundred twenty-five thousand, four".