30872553 has 8 divisors (see below), whose sum is σ = 41940288. Its totient is φ = 20193264.

The previous prime is 30872537. The next prime is 30872563. The reversal of 30872553 is 35527803.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30872553 - 2⁴ = 30872537 is a prime.

It is a super-2 number, since 2×30872553² = 1906229057475618, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30872563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96925 + ... + 97242.

It is an arithmetic number, because the mean of its divisors is an integer number (5242536).

Almost surely, 2^30872553 is an apocalyptic number.

It is an amenable number.

30872553 is a deficient number, since it is larger than the sum of its proper divisors (11067735).

30872553 is a wasteful number, since it uses less digits than its factorization.

30872553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194223.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 30872553 is about 5556.3074968904. The cubic root of 30872553 is about 313.7069798107.

The spelling of 30872553 in words is "thirty million, eight hundred seventy-two thousand, five hundred fifty-three".