54001172405402 has 8 divisors (see below), whose sum is σ = 81144116709300. Its totient is φ = 26953133502304.

The previous prime is 54001172405359. The next prime is 54001172405407. The reversal of 54001172405402 is 20450427110045.

It is a Cunningham number, because it is equal to 7348549²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 54001172405401 + 1 = 7348549^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×54001172405402² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54001172405407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23726348777 + ... + 23726351052.

Almost surely, 2^{54001172405402} is an apocalyptic number.

54001172405402 is a deficient number, since it is larger than the sum of its proper divisors (27142944303898).

54001172405402 is a wasteful number, since it uses less digits than its factorization.

54001172405402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47452700400.

The product of its (nonzero) digits is 44800, while the sum is 35.

Adding to 54001172405402 its reverse (20450427110045), we get a palindrome (74451599515447).

The spelling of 54001172405402 in words is "fifty-four trillion, one billion, one hundred seventy-two million, four hundred five thousand, four hundred two".