20629125 has 48 divisors (see below), whose sum is σ = 40592448. Its totient is φ = 9996000.

The previous prime is 20629123. The next prime is 20629127. The reversal of 20629125 is 52192602.

20629125 is a `hidden beast` number, since 20 + 629 + 12 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (20629123) and next prime (20629127).

It is not a de Polignac number, because 20629125 - 2¹ = 20629123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20629123) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11542 + ... + 13208.

It is an arithmetic number, because the mean of its divisors is an integer number (845676).

Almost surely, 2^20629125 is an apocalyptic number.

20629125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20629125 is a deficient number, since it is larger than the sum of its proper divisors (19963323).

20629125 is a wasteful number, since it uses less digits than its factorization.

20629125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1699 (or 1686 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 20629125 is about 4541.9296559942. The cubic root of 20629125 is about 274.2586090914.

The spelling of 20629125 in words is "twenty million, six hundred twenty-nine thousand, one hundred twenty-five".