51064031554 has 32 divisors (see below), whose sum is σ = 81574271856. Its totient is φ = 23890298880.

The previous prime is 51064031539. The next prime is 51064031563. The reversal of 51064031554 is 45513046015.

51064031554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 34196515929 + 16867515625 = 184923^2 + 129875^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

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, 14419024 + ... + 14422564.

Almost surely, 2^51064031554 is an apocalyptic number.

51064031554 is a deficient number, since it is larger than the sum of its proper divisors (30510240302).

51064031554 is a wasteful number, since it uses less digits than its factorization.

51064031554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5910.

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 51064031554 its reverse (45513046015), we get a palindrome (96577077569).

The spelling of 51064031554 in words is "fifty-one billion, sixty-four million, thirty-one thousand, five hundred fifty-four".