51552554145 has 16 divisors (see below), whose sum is σ = 87336092160. Its totient is φ = 25877360384.

The previous prime is 51552554107. The next prime is 51552554167. The reversal of 51552554145 is 54145525515.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 51552554145 - 2⁷ = 51552554017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51552554097 and 51552554106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101083185 + ... + 101083694.

It is an arithmetic number, because the mean of its divisors is an integer number (5458505760).

Almost surely, 2^51552554145 is an apocalyptic number.

It is an amenable number.

51552554145 is a deficient number, since it is larger than the sum of its proper divisors (35783538015).

51552554145 is a wasteful number, since it uses less digits than its factorization.

51552554145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202166904.

The product of its digits is 500000, while the sum is 42.

The spelling of 51552554145 in words is "fifty-one billion, five hundred fifty-two million, five hundred fifty-four thousand, one hundred forty-five".