55251545597 has 2 divisors, whose sum is σ = 55251545598. Its totient is φ = 55251545596.

The previous prime is 55251545537. The next prime is 55251545651. The reversal of 55251545597 is 79554515255.

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., 55222180036 + 29365561 = 234994^2 + 5419^2 .

It is a cyclic number.

It is not a de Polignac number, because 55251545597 - 2¹⁶ = 55251480061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55251545537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27625772798 + 27625772799.

It is an arithmetic number, because the mean of its divisors is an integer number (27625772799).

Almost surely, 2^55251545597 is an apocalyptic number.

It is an amenable number.

55251545597 is a deficient number, since it is larger than the sum of its proper divisors (1).

55251545597 is an equidigital number, since it uses as much as digits as its factorization.

55251545597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7875000, while the sum is 53.

The spelling of 55251545597 in words is "fifty-five billion, two hundred fifty-one million, five hundred forty-five thousand, five hundred ninety-seven".