55620301357 has 2 divisors, whose sum is σ = 55620301358. Its totient is φ = 55620301356.

The previous prime is 55620301271. The next prime is 55620301369. The reversal of 55620301357 is 75310302655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40984382916 + 14635918441 = 202446^2 + 120979^2 .

It is a cyclic number.

It is not a de Polignac number, because 55620301357 - 2¹⁵ = 55620268589 is a prime.

It is a super-3 number, since 3×55620301357³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55620302357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27810150678 + 27810150679.

It is an arithmetic number, because the mean of its divisors is an integer number (27810150679).

Almost surely, 2^55620301357 is an apocalyptic number.

It is an amenable number.

55620301357 is a deficient number, since it is larger than the sum of its proper divisors (1).

55620301357 is an equidigital number, since it uses as much as digits as its factorization.

55620301357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94500, while the sum is 37.

The spelling of 55620301357 in words is "fifty-five billion, six hundred twenty million, three hundred one thousand, three hundred fifty-seven".