55401127938 has 48 divisors (see below), whose sum is σ = 133726876920. Its totient is φ = 16458688512.

The previous prime is 55401127933. The next prime is 55401127973. The reversal of 55401127938 is 83972110455.

55401127938 is a `hidden beast` number, since 5 + 540 + 1 + 1 + 2 + 79 + 38 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 28303688169 + 27097439769 = 168237^2 + 164613^2 .

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 55401127893 and 55401127902.

It is not an unprimeable number, because it can be changed into a prime (55401127933) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4075231 + ... + 4088802.

Almost surely, 2^55401127938 is an apocalyptic number.

55401127938 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

55401127938 is an abundant number, since it is smaller than the sum of its proper divisors (78325748982).

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

55401127938 is a wasteful number, since it uses less digits than its factorization.

55401127938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8164083 (or 8164080 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

It can be divided in two parts, 5540112793 and 8, that multiplied together give a palindrome (44320902344).

The spelling of 55401127938 in words is "fifty-five billion, four hundred one million, one hundred twenty-seven thousand, nine hundred thirty-eight".