53140021532 has 48 divisors (see below), whose sum is σ = 102500536320. Its totient is φ = 23952414912.

The previous prime is 53140021531. The next prime is 53140021547. The reversal of 53140021532 is 23512004135.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53140021531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1118069 + ... + 1164627.

It is an arithmetic number, because the mean of its divisors is an integer number (2135427840).

Almost surely, 2^53140021532 is an apocalyptic number.

53140021532 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

53140021532 is a deficient number, since it is larger than the sum of its proper divisors (49360514788).

53140021532 is a wasteful number, since it uses less digits than its factorization.

53140021532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47090 (or 47088 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 53140021532 its reverse (23512004135), we get a palindrome (76652025667).

The spelling of 53140021532 in words is "fifty-three billion, one hundred forty million, twenty-one thousand, five hundred thirty-two".