51220032354 has 24 divisors (see below), whose sum is σ = 111253502412. Its totient is φ = 17030764800.

The previous prime is 51220032329. The next prime is 51220032373. The reversal of 51220032354 is 45323002215.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 51043009329 + 177023025 = 225927^2 + 13305^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3540859 + ... + 3555294.

Almost surely, 2^51220032354 is an apocalyptic number.

51220032354 is an abundant number, since it is smaller than the sum of its proper divisors (60033470058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51220032354 is a wasteful number, since it uses less digits than its factorization.

51220032354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7096562 (or 7096559 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 51220032354 its reverse (45323002215), we get a palindrome (96543034569).

The spelling of 51220032354 in words is "fifty-one billion, two hundred twenty million, thirty-two thousand, three hundred fifty-four".