6551402432537 has 2 divisors, whose sum is σ = 6551402432538. Its totient is φ = 6551402432536.

The previous prime is 6551402432489. The next prime is 6551402432569. The reversal of 6551402432537 is 7352342041556.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5719769692816 + 831632739721 = 2391604^2 + 911939^2 .

It is a cyclic number.

It is not a de Polignac number, because 6551402432537 - 2¹⁶ = 6551402367001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6551402432491 and 6551402432500.

It is not a weakly prime, because it can be changed into another prime (6551402435537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3275701216268 + 3275701216269.

It is an arithmetic number, because the mean of its divisors is an integer number (3275701216269).

Almost surely, 2^{6551402432537} is an apocalyptic number.

It is an amenable number.

6551402432537 is a deficient number, since it is larger than the sum of its proper divisors (1).

6551402432537 is an equidigital number, since it uses as much as digits as its factorization.

6551402432537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024000, while the sum is 47.

The spelling of 6551402432537 in words is "six trillion, five hundred fifty-one billion, four hundred two million, four hundred thirty-two thousand, five hundred thirty-seven".