20051411542 has 4 divisors (see below), whose sum is σ = 30077117316. Its totient is φ = 10025705770.

The previous prime is 20051411509. The next prime is 20051411609. The reversal of 20051411542 is 24511415002.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5012852884 + ... + 5012852887.

It is an arithmetic number, because the mean of its divisors is an integer number (7519279329).

Almost surely, 2^20051411542 is an apocalyptic number.

20051411542 is a deficient number, since it is larger than the sum of its proper divisors (10025705774).

20051411542 is a wasteful number, since it uses less digits than its factorization.

20051411542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10025705773.

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 20051411542 its reverse (24511415002), we get a palindrome (44562826544).

The spelling of 20051411542 in words is "twenty billion, fifty-one million, four hundred eleven thousand, five hundred forty-two".