20257655073254 has 16 divisors (see below), whose sum is σ = 30427832097936. Its totient is φ = 10115047562400.

The previous prime is 20257655073203. The next prime is 20257655073287. The reversal of 20257655073254 is 45237055675202.

It is a super-2 number, since 2×20257655073254² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20257655073196 and 20257655073205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11983724 + ... + 13569264.

It is an arithmetic number, because the mean of its divisors is an integer number (1901739506121).

Almost surely, 2^{20257655073254} is an apocalyptic number.

20257655073254 is a deficient number, since it is larger than the sum of its proper divisors (10170177024682).

20257655073254 is a wasteful number, since it uses less digits than its factorization.

20257655073254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1594231.

The product of its (nonzero) digits is 17640000, while the sum is 53.

The spelling of 20257655073254 in words is "twenty trillion, two hundred fifty-seven billion, six hundred fifty-five million, seventy-three thousand, two hundred fifty-four".