51154500025511 has 8 divisors (see below), whose sum is σ = 52355884011024. Its totient is φ = 49953649878720.

The previous prime is 51154500025507. The next prime is 51154500025513. The reversal of 51154500025511 is 11552000545115.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51154500025511 - 2² = 51154500025507 is a prime.

It is a super-2 number, since 2×51154500025511² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51154500025513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133265780 + ... + 133649081.

It is an arithmetic number, because the mean of its divisors is an integer number (6544485501378).

Almost surely, 2^{51154500025511} is an apocalyptic number.

51154500025511 is a deficient number, since it is larger than the sum of its proper divisors (1201383985513).

51154500025511 is a wasteful number, since it uses less digits than its factorization.

51154500025511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266919361.

The product of its (nonzero) digits is 25000, while the sum is 35.

The spelling of 51154500025511 in words is "fifty-one trillion, one hundred fifty-four billion, five hundred million, twenty-five thousand, five hundred eleven".