51140524405 has 4 divisors (see below), whose sum is σ = 61368629292. Its totient is φ = 40912419520.

The previous prime is 51140524373. The next prime is 51140524429. The reversal of 51140524405 is 50442504115.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50442504115 = 5 ⋅10088500823.

It can be written as a sum of positive squares in 2 ways, for example, as 30039475761 + 21101048644 = 173319^2 + 145262^2 .

It is not a de Polignac number, because 51140524405 - 2⁵ = 51140524373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5114052436 + ... + 5114052445.

It is an arithmetic number, because the mean of its divisors is an integer number (15342157323).

Almost surely, 2^51140524405 is an apocalyptic number.

It is an amenable number.

51140524405 is a deficient number, since it is larger than the sum of its proper divisors (10228104887).

51140524405 is a wasteful number, since it uses less digits than its factorization.

51140524405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10228104886.

The product of its (nonzero) digits is 16000, while the sum is 31.

The spelling of 51140524405 in words is "fifty-one billion, one hundred forty million, five hundred twenty-four thousand, four hundred five".