20025331577430 has 32 divisors (see below), whose sum is σ = 48088118707200. Its totient is φ = 5337052540512.

The previous prime is 20025331577393. The next prime is 20025331577437. The reversal of 20025331577430 is 3477513352002.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20025331577437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189688860 + ... + 189794399.

It is an arithmetic number, because the mean of its divisors is an integer number (1502753709600).

Almost surely, 2^{20025331577430} is an apocalyptic number.

20025331577430 is an abundant number, since it is smaller than the sum of its proper divisors (28062787129770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20025331577430 is a wasteful number, since it uses less digits than its factorization.

20025331577430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379485028.

The product of its (nonzero) digits is 529200, while the sum is 42.

The spelling of 20025331577430 in words is "twenty trillion, twenty-five billion, three hundred thirty-one million, five hundred seventy-seven thousand, four hundred thirty".