45551615537 has 2 divisors, whose sum is σ = 45551615538. Its totient is φ = 45551615536.

The previous prime is 45551615489. The next prime is 45551615561. The reversal of 45551615537 is 73551615554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35739524401 + 9812091136 = 189049^2 + 99056^2 .

It is a cyclic number.

It is not a de Polignac number, because 45551615537 - 2⁸ = 45551615281 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45551615491 and 45551615500.

It is not a weakly prime, because it can be changed into another prime (45551615567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22775807768 + 22775807769.

It is an arithmetic number, because the mean of its divisors is an integer number (22775807769).

Almost surely, 2^45551615537 is an apocalyptic number.

It is an amenable number.

45551615537 is a deficient number, since it is larger than the sum of its proper divisors (1).

45551615537 is an equidigital number, since it uses as much as digits as its factorization.

45551615537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1575000, while the sum is 47.

The spelling of 45551615537 in words is "forty-five billion, five hundred fifty-one million, six hundred fifteen thousand, five hundred thirty-seven".