5111254545415 has 4 divisors (see below), whose sum is σ = 6133505454504. Its totient is φ = 4089003636328.

The previous prime is 5111254545391. The next prime is 5111254545421. The reversal of 5111254545415 is 5145454521115.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5111254545415 is a prime.

It is a super-2 number, since 2×5111254545415² (a number of 26 digits) contains 22 as substring.

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, 511125454537 + ... + 511125454546.

It is an arithmetic number, because the mean of its divisors is an integer number (1533376363626).

Almost surely, 2^{5111254545415} is an apocalyptic number.

5111254545415 is a deficient number, since it is larger than the sum of its proper divisors (1022250909089).

5111254545415 is a wasteful number, since it uses less digits than its factorization.

5111254545415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022250909088.

The product of its digits is 400000, while the sum is 43.

The spelling of 5111254545415 in words is "five trillion, one hundred eleven billion, two hundred fifty-four million, five hundred forty-five thousand, four hundred fifteen".