15552072 has 48 divisors (see below), whose sum is σ = 42822780. Its totient is φ = 5097600.

The previous prime is 15552067. The next prime is 15552083. The reversal of 15552072 is 27025551.

It is a happy number.

15552072 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 13793796 + 1758276 = 3714^2 + 1326^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2622 + ... + 6162.

Almost surely, 2^15552072 is an apocalyptic number.

15552072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15552072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21411390).

15552072 is an abundant number, since it is smaller than the sum of its proper divisors (27270708).

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

15552072 is a wasteful number, since it uses less digits than its factorization.

15552072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3614 (or 3607 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 15552072 is about 3943.6115427359. The cubic root of 15552072 is about 249.6104439663.

The spelling of 15552072 in words is "fifteen million, five hundred fifty-two thousand, seventy-two".