51140142453 has 4 divisors (see below), whose sum is σ = 68186856608. Its totient is φ = 34093428300.

The previous prime is 51140142421. The next prime is 51140142457. The reversal of 51140142453 is 35424104115.

51140142453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 51140142453 - 2⁵ = 51140142421 is a prime.

It is a super-2 number, since 2×51140142453² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51140142453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51140142457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8523357073 + ... + 8523357078.

It is an arithmetic number, because the mean of its divisors is an integer number (17046714152).

Almost surely, 2^51140142453 is an apocalyptic number.

It is an amenable number.

51140142453 is a deficient number, since it is larger than the sum of its proper divisors (17046714155).

51140142453 is a wasteful number, since it uses less digits than its factorization.

51140142453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17046714154.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 51140142453 its reverse (35424104115), we get a palindrome (86564246568).

The spelling of 51140142453 in words is "fifty-one billion, one hundred forty million, one hundred forty-two thousand, four hundred fifty-three".