55125415064521 has 2 divisors, whose sum is σ = 55125415064522. Its totient is φ = 55125415064520.

The previous prime is 55125415064501. The next prime is 55125415064567. The reversal of 55125415064521 is 12546051452155.

It is an a-pointer prime, because the next prime (55125415064567) can be obtained adding 55125415064521 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38854477688896 + 16270937375625 = 6233336^2 + 4033725^2 .

It is a cyclic number.

It is not a de Polignac number, because 55125415064521 - 2¹³ = 55125415056329 is a prime.

It is a super-2 number, since 2×55125415064521² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55125415064501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27562707532260 + 27562707532261.

It is an arithmetic number, because the mean of its divisors is an integer number (27562707532261).

Almost surely, 2^{55125415064521} is an apocalyptic number.

It is an amenable number.

55125415064521 is a deficient number, since it is larger than the sum of its proper divisors (1).

55125415064521 is an equidigital number, since it uses as much as digits as its factorization.

55125415064521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200000, while the sum is 46.

The spelling of 55125415064521 in words is "fifty-five trillion, one hundred twenty-five billion, four hundred fifteen million, sixty-four thousand, five hundred twenty-one".