20067555225 has 48 divisors (see below), whose sum is σ = 35185283712. Its totient is φ = 10057282560.

The previous prime is 20067555181. The next prime is 20067555253. The reversal of 20067555225 is 52255576002.

It is not a de Polignac number, because 20067555225 - 2³¹ = 17920071577 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 820524 + ... + 844626.

It is an arithmetic number, because the mean of its divisors is an integer number (733026744).

Almost surely, 2^20067555225 is an apocalyptic number.

20067555225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20067555225 is a deficient number, since it is larger than the sum of its proper divisors (15117728487).

20067555225 is a wasteful number, since it uses less digits than its factorization.

20067555225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24786 (or 24781 counting only the distinct ones).

The product of its (nonzero) digits is 210000, while the sum is 39.

The spelling of 20067555225 in words is "twenty billion, sixty-seven million, five hundred fifty-five thousand, two hundred twenty-five".