53420391000 has 448 divisors, whose sum is σ = 189222958080. Its totient is φ = 14108774400.

The previous prime is 53420390941. The next prime is 53420391007. The reversal of 53420391000 is 19302435.

53420391000 is a `hidden beast` number, since 534 + 20 + 3 + 9 + 100 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53420391007) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 92582712 + ... + 92583288.

Almost surely, 2^53420391000 is an apocalyptic number.

53420391000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53420391000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94611479040).

53420391000 is an abundant number, since it is smaller than the sum of its proper divisors (135802567080).

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

53420391000 is a wasteful number, since it uses less digits than its factorization.

53420391000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743 (or 714 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

Adding to 53420391000 its reverse (19302435), we get a palindrome (53439693435).

The spelling of 53420391000 in words is "fifty-three billion, four hundred twenty million, three hundred ninety-one thousand".