20934025 has 36 divisors (see below), whose sum is σ = 31551552. Its totient is φ = 13712160.

The previous prime is 20934019. The next prime is 20934031. The reversal of 20934025 is 52043902.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20934019) and next prime (20934031).

It is not a de Polignac number, because 20934025 - 2¹³ = 20925833 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 27804 + ... + 28546.

It is an arithmetic number, because the mean of its divisors is an integer number (876432).

Almost surely, 2^20934025 is an apocalyptic number.

20934025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20934025 is a deficient number, since it is larger than the sum of its proper divisors (10617527).

20934025 is a wasteful number, since it uses less digits than its factorization.

20934025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790 (or 778 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 20934025 is about 4575.3715696105. The cubic root of 20934025 is about 275.6031938741.

Adding to 20934025 its reverse (52043902), we get a palindrome (72977927).

The spelling of 20934025 in words is "twenty million, nine hundred thirty-four thousand, twenty-five".