53345621142 has 96 divisors (see below), whose sum is σ = 131299217280. Its totient is φ = 16041682800.

The previous prime is 53345621099. The next prime is 53345621143. The reversal of 53345621142 is 24112654335.

53345621142 is a `hidden beast` number, since 53 + 3 + 4 + 562 + 1 + 1 + 42 = 666.

53345621142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 53345621097 and 53345621106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53345621143) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 824793 + ... + 887115.

It is an arithmetic number, because the mean of its divisors is an integer number (1367700180).

Almost surely, 2^53345621142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53345621142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65649608640).

53345621142 is an abundant number, since it is smaller than the sum of its proper divisors (77953596138).

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

53345621142 is a wasteful number, since it uses less digits than its factorization.

53345621142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62487 (or 62470 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The spelling of 53345621142 in words is "fifty-three billion, three hundred forty-five million, six hundred twenty-one thousand, one hundred forty-two".