1253423025 has 48 divisors (see below), whose sum is σ = 2351635200. Its totient is φ = 654252480.

The previous prime is 1253422993. The next prime is 1253423047. The reversal of 1253423025 is 5203243521.

It is a happy number.

1253423025 is a `hidden beast` number, since 12 + 5 + 342 + 302 + 5 = 666.

It is not a de Polignac number, because 1253423025 - 2⁵ = 1253422993 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1253423025.

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, 11971 + ... + 51479.

It is an arithmetic number, because the mean of its divisors is an integer number (48992400).

Almost surely, 2^1253423025 is an apocalyptic number.

1253423025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1253423025 is a deficient number, since it is larger than the sum of its proper divisors (1098212175).

1253423025 is a wasteful number, since it uses less digits than its factorization.

1253423025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39575 (or 39564 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 1253423025 is about 35403.7148474563. The cubic root of 1253423025 is about 1078.1997399982.

Adding to 1253423025 its reverse (5203243521), we get a palindrome (6456666546).

The spelling of 1253423025 in words is "one billion, two hundred fifty-three million, four hundred twenty-three thousand, twenty-five".