30072552 has 16 divisors (see below), whose sum is σ = 75181440. Its totient is φ = 10024176.

The previous prime is 30072551. The next prime is 30072563. The reversal of 30072552 is 25527003.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 1253023 = 30072552 / (3 + 0 + 0 + 7 + 2 + 5 + 5 + 2).

It is not an unprimeable number, because it can be changed into a prime (30072551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 626488 + ... + 626535.

It is an arithmetic number, because the mean of its divisors is an integer number (4698840).

Almost surely, 2^30072552 is an apocalyptic number.

It is an amenable number.

30072552 is an abundant number, since it is smaller than the sum of its proper divisors (45108888).

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

30072552 is a wasteful number, since it uses less digits than its factorization.

30072552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253032 (or 1253028 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 30072552 is about 5483.8446367489. The cubic root of 30072552 is about 310.9735333122.

Adding to 30072552 its reverse (25527003), we get a palindrome (55599555).

The spelling of 30072552 in words is "thirty million, seventy-two thousand, five hundred fifty-two".