20353504254 has 64 divisors (see below), whose sum is σ = 44378357760. Its totient is φ = 6201951840.

The previous prime is 20353504247. The next prime is 20353504279. The reversal of 20353504254 is 45240535302.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 353667 + ... + 407169.

It is an arithmetic number, because the mean of its divisors is an integer number (693411840).

Almost surely, 2^20353504254 is an apocalyptic number.

20353504254 is an abundant number, since it is smaller than the sum of its proper divisors (24024853506).

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

20353504254 is a wasteful number, since it uses less digits than its factorization.

20353504254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53645.

The product of its (nonzero) digits is 72000, while the sum is 33.

The spelling of 20353504254 in words is "twenty billion, three hundred fifty-three million, five hundred four thousand, two hundred fifty-four".