1542625252 has 72 divisors (see below), whose sum is σ = 3199150080. Its totient is φ = 648869760.

The previous prime is 1542625247. The next prime is 1542625267. The reversal of 1542625252 is 2525262451.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3331573 + ... + 3332035.

It is an arithmetic number, because the mean of its divisors is an integer number (44432640).

Almost surely, 2^1542625252 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 1542625252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1599575040).

1542625252 is an abundant number, since it is smaller than the sum of its proper divisors (1656524828).

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

1542625252 is a wasteful number, since it uses less digits than its factorization.

1542625252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761 (or 752 counting only the distinct ones).

The product of its digits is 48000, while the sum is 34.

The square root of 1542625252 is about 39276.2683054284. The cubic root of 1542625252 is about 1155.4561773196.

The spelling of 1542625252 in words is "one billion, five hundred forty-two million, six hundred twenty-five thousand, two hundred fifty-two".