54040245402 has 256 divisors, whose sum is σ = 134608158720. Its totient is φ = 14238873600.

The previous prime is 54040245383. The next prime is 54040245403. The reversal of 54040245402 is 20454204045.

It is a self number, because there is not a number n which added to its sum of digits gives 54040245402.

It is not an unprimeable number, because it can be changed into a prime (54040245403) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 282933127 + ... + 282933317.

It is an arithmetic number, because the mean of its divisors is an integer number (525813120).

Almost surely, 2^54040245402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54040245402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67304079360).

54040245402 is an abundant number, since it is smaller than the sum of its proper divisors (80567913318).

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

54040245402 is a wasteful number, since it uses less digits than its factorization.

54040245402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469.

The product of its (nonzero) digits is 25600, while the sum is 30.

Adding to 54040245402 its reverse (20454204045), we get a palindrome (74494449447).

The spelling of 54040245402 in words is "fifty-four billion, forty million, two hundred forty-five thousand, four hundred two".