30542025 has 24 divisors (see below), whose sum is σ = 53156320. Its totient is φ = 15431040.

The previous prime is 30542023. The next prime is 30542033. The reversal of 30542025 is 52024503.

It is not a de Polignac number, because 30542025 - 2¹ = 30542023 is a prime.

It is a super-2 number, since 2×30542025² = 1865630582201250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30541992 and 30542010.

It is not an unprimeable number, because it can be changed into a prime (30542023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9292 + ... + 12141.

Almost surely, 2^30542025 is an apocalyptic number.

It is an amenable number.

30542025 is a deficient number, since it is larger than the sum of its proper divisors (22614295).

30542025 is a wasteful number, since it uses less digits than its factorization.

30542025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21465 (or 21460 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 30542025 is about 5526.4839636065. The cubic root of 30542025 is about 312.5834230612.

Adding to 30542025 its reverse (52024503), we get a palindrome (82566528).

The spelling of 30542025 in words is "thirty million, five hundred forty-two thousand, twenty-five".