51402124042001 has 6 divisors (see below), whose sum is σ = 54249887147202. Its totient is φ = 48696749092080.

The previous prime is 51402124041979. The next prime is 51402124042013. The reversal of 51402124042001 is 10024042120415.

It can be written as a sum of positive squares in only one way, i.e., 50994666513025 + 407457528976 = 7141055^2 + 638324^2 .

It is not a de Polignac number, because 51402124042001 - 2⁶ = 51402124041937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51402124002001) 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, 71194077260 + ... + 71194077981.

It is an arithmetic number, because the mean of its divisors is an integer number (9041647857867).

Almost surely, 2^{51402124042001} is an apocalyptic number.

It is an amenable number.

51402124042001 is a deficient number, since it is larger than the sum of its proper divisors (2847763105201).

51402124042001 is a wasteful number, since it uses less digits than its factorization.

51402124042001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142388155279 (or 142388155260 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

Adding to 51402124042001 its reverse (10024042120415), we get a palindrome (61426166162416).

The spelling of 51402124042001 in words is "fifty-one trillion, four hundred two billion, one hundred twenty-four million, forty-two thousand, one".