20262251632 has 40 divisors (see below), whose sum is σ = 44995798656. Its totient is φ = 8658780096.

The previous prime is 20262251627. The next prime is 20262251641. The reversal of 20262251632 is 23615226202.

It is a junction number, because it is equal to n+sod(n) for n = 20262251594 and 20262251603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221818 + ... + 299545.

Almost surely, 2^20262251632 is an apocalyptic number.

It is an amenable number.

20262251632 is an abundant number, since it is smaller than the sum of its proper divisors (24733547024).

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

20262251632 is a wasteful number, since it uses less digits than its factorization.

20262251632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521725 (or 521719 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 20262251632 its reverse (23615226202), we get a palindrome (43877477834).

The spelling of 20262251632 in words is "twenty billion, two hundred sixty-two million, two hundred fifty-one thousand, six hundred thirty-two".