53401645049 has 2 divisors, whose sum is σ = 53401645050. Its totient is φ = 53401645048.

The previous prime is 53401645013. The next prime is 53401645061. The reversal of 53401645049 is 94054610435.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53346217024 + 55428025 = 230968^2 + 7445^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53401645049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53401644997 and 53401645015.

It is not a weakly prime, because it can be changed into another prime (53401645069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26700822524 + 26700822525.

It is an arithmetic number, because the mean of its divisors is an integer number (26700822525).

Almost surely, 2^53401645049 is an apocalyptic number.

It is an amenable number.

53401645049 is a deficient number, since it is larger than the sum of its proper divisors (1).

53401645049 is an equidigital number, since it uses as much as digits as its factorization.

53401645049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 53401645049 in words is "fifty-three billion, four hundred one million, six hundred forty-five thousand, forty-nine".