51275070200402 has 16 divisors (see below), whose sum is σ = 76936509893880. Its totient is φ = 25629567787008.

The previous prime is 51275070200401. The next prime is 51275070200411. The reversal of 51275070200402 is 20400207057215.

It can be written as a sum of positive squares in 4 ways, for example, as 41511076382281 + 9763993818121 = 6442909^2 + 3124739^2 .

It is not an unprimeable number, because it can be changed into a prime (51275070200401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120829298 + ... + 121252914.

Almost surely, 2^{51275070200402} is an apocalyptic number.

51275070200402 is a deficient number, since it is larger than the sum of its proper divisors (25661439693478).

51275070200402 is a wasteful number, since it uses less digits than its factorization.

51275070200402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442285.

The product of its (nonzero) digits is 39200, while the sum is 35.

Adding to 51275070200402 its reverse (20400207057215), we get a palindrome (71675277257617).

The spelling of 51275070200402 in words is "fifty-one trillion, two hundred seventy-five billion, seventy million, two hundred thousand, four hundred two".