20674725 has 24 divisors (see below), whose sum is σ = 34393632. Its totient is φ = 10958400.

The previous prime is 20674699. The next prime is 20674729. The reversal of 20674725 is 52747602.

It is not a de Polignac number, because 20674725 - 2⁷ = 20674597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20674729) 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, 12814 + ... + 14336.

It is an arithmetic number, because the mean of its divisors is an integer number (1433068).

Almost surely, 2^20674725 is an apocalyptic number.

20674725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20674725 is a deficient number, since it is larger than the sum of its proper divisors (13718907).

20674725 is a wasteful number, since it uses less digits than its factorization.

20674725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717 (or 1712 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 20674725 is about 4546.9467777840. The cubic root of 20674725 is about 274.4605402451.

The spelling of 20674725 in words is "twenty million, six hundred seventy-four thousand, seven hundred twenty-five".