1251053424 has 120 divisors (see below), whose sum is σ = 3649110192. Its totient is φ = 414927360.

The previous prime is 1251053407. The next prime is 1251053429. The reversal of 1251053424 is 4243501521.

1251053424 is a `hidden beast` number, since 125 + 1 + 0 + 534 + 2 + 4 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251053429) 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, 905214 + ... + 906594.

Almost surely, 2^1251053424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1251053424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1824555096).

1251053424 is an abundant number, since it is smaller than the sum of its proper divisors (2398056768).

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

1251053424 is a wasteful number, since it uses less digits than its factorization.

1251053424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1637 (or 1619 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1251053424 is about 35370.2335870149. The cubic root of 1251053424 is about 1077.5198644780.

Adding to 1251053424 its reverse (4243501521), we get a palindrome (5494554945).

The spelling of 1251053424 in words is "one billion, two hundred fifty-one million, fifty-three thousand, four hundred twenty-four".