53440140225 has 48 divisors (see below), whose sum is σ = 88968627072. Its totient is φ = 28303925760.

The previous prime is 53440140217. The next prime is 53440140227. The reversal of 53440140225 is 52204104435.

53440140225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53440140225 - 2³ = 53440140217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53440140192 and 53440140201.

It is not an unprimeable number, because it can be changed into a prime (53440140227) 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, 6933724 + ... + 6941426.

It is an arithmetic number, because the mean of its divisors is an integer number (1853513064).

Almost surely, 2^53440140225 is an apocalyptic number.

It is an amenable number.

53440140225 is a deficient number, since it is larger than the sum of its proper divisors (35528486847).

53440140225 is a wasteful number, since it uses less digits than its factorization.

53440140225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8346 (or 8341 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The spelling of 53440140225 in words is "fifty-three billion, four hundred forty million, one hundred forty thousand, two hundred twenty-five".