51320154325 has 48 divisors (see below), whose sum is σ = 70716188160. Its totient is φ = 36632792000.

The previous prime is 51320154287. The next prime is 51320154337. The reversal of 51320154325 is 52345102315.

It is not a de Polignac number, because 51320154325 - 2¹¹ = 51320152277 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4426386 + ... + 4437964.

It is an arithmetic number, because the mean of its divisors is an integer number (1473253920).

Almost surely, 2^51320154325 is an apocalyptic number.

51320154325 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51320154325 is a deficient number, since it is larger than the sum of its proper divisors (19396033835).

51320154325 is a wasteful number, since it uses less digits than its factorization.

51320154325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11898 (or 11893 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 51320154325 in words is "fifty-one billion, three hundred twenty million, one hundred fifty-four thousand, three hundred twenty-five".