4001421250554 has 32 divisors (see below), whose sum is σ = 9849652310400. Its totient is φ = 1055319890112.

The previous prime is 4001421250553. The next prime is 4001421250649. The reversal of 4001421250554 is 4550521241004.

It is a happy number.

It is a super-2 number, since 2×4001421250554² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4001421250553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3664304629 + ... + 3664305720.

It is an arithmetic number, because the mean of its divisors is an integer number (307801634700).

Almost surely, 2^{4001421250554} is an apocalyptic number.

4001421250554 is an abundant number, since it is smaller than the sum of its proper divisors (5848231059846).

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

4001421250554 is a wasteful number, since it uses less digits than its factorization.

4001421250554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7328610374.

The product of its (nonzero) digits is 32000, while the sum is 33.

Adding to 4001421250554 its reverse (4550521241004), we get a palindrome (8551942491558).

The spelling of 4001421250554 in words is "four trillion, one billion, four hundred twenty-one million, two hundred fifty thousand, five hundred fifty-four".