55487433478453 has 2 divisors, whose sum is σ = 55487433478454. Its totient is φ = 55487433478452.

The previous prime is 55487433478447. The next prime is 55487433478459. The reversal of 55487433478453 is 35487433478455.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (55487433478447) and next prime (55487433478459).

It can be written as a sum of positive squares in only one way, i.e., 36588259685329 + 18899173793124 = 6048823^2 + 4347318^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55487433478453 is a prime.

It is a super-3 number, since 3×55487433478453³ (a number of 42 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55487433478459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27743716739226 + 27743716739227.

It is an arithmetic number, because the mean of its divisors is an integer number (27743716739227).

Almost surely, 2^{55487433478453} is an apocalyptic number.

It is an amenable number.

55487433478453 is a deficient number, since it is larger than the sum of its proper divisors (1).

55487433478453 is an equidigital number, since it uses as much as digits as its factorization.

55487433478453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2709504000, while the sum is 70.

The spelling of 55487433478453 in words is "fifty-five trillion, four hundred eighty-seven billion, four hundred thirty-three million, four hundred seventy-eight thousand, four hundred fifty-three".