20670300425 has 24 divisors (see below), whose sum is σ = 27598903200. Its totient is φ = 15299713280.

The previous prime is 20670300421. The next prime is 20670300517. The reversal of 20670300425 is 52400307602.

It is not a de Polignac number, because 20670300425 - 2² = 20670300421 is a prime.

It is a super-2 number, since 2×20670300425² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20670300421) 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, 387095 + ... + 437244.

It is an arithmetic number, because the mean of its divisors is an integer number (1149954300).

Almost surely, 2^20670300425 is an apocalyptic number.

20670300425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20670300425 is a deficient number, since it is larger than the sum of its proper divisors (6928602775).

20670300425 is a wasteful number, since it uses less digits than its factorization.

20670300425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824425 (or 824420 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 29.

The spelling of 20670300425 in words is "twenty billion, six hundred seventy million, three hundred thousand, four hundred twenty-five".