51554398287 has 32 divisors (see below), whose sum is σ = 79451112960. Its totient is φ = 29125987200.

The previous prime is 51554398243. The next prime is 51554398303. The reversal of 51554398287 is 78289345515.

It is not a de Polignac number, because 51554398287 - 2⁸ = 51554398031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51554398187) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1486648 + ... + 1520930.

It is an arithmetic number, because the mean of its divisors is an integer number (2482847280).

Almost surely, 2^51554398287 is an apocalyptic number.

51554398287 is a deficient number, since it is larger than the sum of its proper divisors (27896714673).

51554398287 is a wasteful number, since it uses less digits than its factorization.

51554398287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35103.

The product of its digits is 12096000, while the sum is 57.

The spelling of 51554398287 in words is "fifty-one billion, five hundred fifty-four million, three hundred ninety-eight thousand, two hundred eighty-seven".