30101925 has 36 divisors (see below), whose sum is σ = 57901056. Its totient is φ = 13759200.

The previous prime is 30101891. The next prime is 30101927. The reversal of 30101925 is 52910103.

It is not a de Polignac number, because 30101925 - 2¹² = 30097829 is a prime.

It is a super-2 number, since 2×30101925² = 1812251777411250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30101927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 421 + ... + 7770.

Almost surely, 2^30101925 is an apocalyptic number.

30101925 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30101925 is a deficient number, since it is larger than the sum of its proper divisors (27799131).

30101925 is a wasteful number, since it uses less digits than its factorization.

30101925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8218 (or 8206 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 30101925 is about 5486.5221224379. The cubic root of 30101925 is about 311.0747469071.

The spelling of 30101925 in words is "thirty million, one hundred one thousand, nine hundred twenty-five".