51252213141 has 6 divisors (see below), whose sum is σ = 74030974550. Its totient is φ = 34168142088.

The previous prime is 51252213121. The next prime is 51252213167. The reversal of 51252213141 is 14131225215.

It is a happy number.

51252213141 is a `hidden beast` number, since 5 + 1 + 2 + 522 + 131 + 4 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 29568178116 + 21684035025 = 171954^2 + 147255^2 .

It is not a de Polignac number, because 51252213141 - 2⁷ = 51252213013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51252213121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2847345166 + ... + 2847345183.

Almost surely, 2^51252213141 is an apocalyptic number.

It is an amenable number.

51252213141 is a deficient number, since it is larger than the sum of its proper divisors (22778761409).

51252213141 is a wasteful number, since it uses less digits than its factorization.

51252213141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5694690355 (or 5694690352 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

Adding to 51252213141 its reverse (14131225215), we get a palindrome (65383438356).

The spelling of 51252213141 in words is "fifty-one billion, two hundred fifty-two million, two hundred thirteen thousand, one hundred forty-one".