1253325400 has 48 divisors (see below), whose sum is σ = 2919110040. Its totient is φ = 500448000.

The previous prime is 1253325379. The next prime is 1253325401. The reversal of 1253325400 is 45233521.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253325401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114987 + ... + 125413.

Almost surely, 2^1253325400 is an apocalyptic number.

1253325400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1253325400 is an abundant number, since it is smaller than the sum of its proper divisors (1665784640).

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

1253325400 is a wasteful number, since it uses less digits than its factorization.

1253325400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11044 (or 11035 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 1253325400 is about 35402.3360811119. The cubic root of 1253325400 is about 1078.1717467933.

Adding to 1253325400 its reverse (45233521), we get a palindrome (1298558921).

The spelling of 1253325400 in words is "one billion, two hundred fifty-three million, three hundred twenty-five thousand, four hundred".