30252805 has 16 divisors (see below), whose sum is σ = 39714624. Its totient is φ = 21940480.

The previous prime is 30252763. The next prime is 30252823. The reversal of 30252805 is 50825203.

It is a de Polignac number, because none of the positive numbers 2^k-30252805 is a prime.

It is a super-5 number, since 5×30252805⁵ (a number of 39 digits) contains 55555 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30252805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30477 + ... + 31453.

It is an arithmetic number, because the mean of its divisors is an integer number (2482164).

Almost surely, 2^30252805 is an apocalyptic number.

It is an amenable number.

30252805 is a deficient number, since it is larger than the sum of its proper divisors (9461819).

30252805 is a wasteful number, since it uses less digits than its factorization.

30252805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1556.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 30252805 is about 5500.2549940889. The cubic root of 30252805 is about 311.5936146985.

The spelling of 30252805 in words is "thirty million, two hundred fifty-two thousand, eight hundred five".