20500055252570 has 32 divisors (see below), whose sum is σ = 37759214959488. Its totient is φ = 8009117379648.

The previous prime is 20500055252561. The next prime is 20500055252587. The reversal of 20500055252570 is 7525255000502.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16642772 + ... + 17832048.

It is an arithmetic number, because the mean of its divisors is an integer number (1179975467484).

Almost surely, 2^{20500055252570} is an apocalyptic number.

20500055252570 is a deficient number, since it is larger than the sum of its proper divisors (17259159706918).

20500055252570 is a wasteful number, since it uses less digits than its factorization.

20500055252570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229414.

The product of its (nonzero) digits is 175000, while the sum is 38.

The spelling of 20500055252570 in words is "twenty trillion, five hundred billion, fifty-five million, two hundred fifty-two thousand, five hundred seventy".