55896257 has 2 divisors, whose sum is σ = 55896258. Its totient is φ = 55896256.

The previous prime is 55896251. The next prime is 55896331. The reversal of 55896257 is 75269855.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37994896 + 17901361 = 6164^2 + 4231^2 .

It is a cyclic number.

It is not a de Polignac number, because 55896257 - 2¹⁸ = 55634113 is a prime.

It is a super-3 number, since 3×55896257³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a nialpdrome in base 13.

It is not a weakly prime, because it can be changed into another prime (55896251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27948128 + 27948129.

It is an arithmetic number, because the mean of its divisors is an integer number (27948129).

Almost surely, 2^55896257 is an apocalyptic number.

It is an amenable number.

55896257 is a deficient number, since it is larger than the sum of its proper divisors (1).

55896257 is an equidigital number, since it uses as much as digits as its factorization.

55896257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756000, while the sum is 47.

The square root of 55896257 is about 7476.3799395162. The cubic root of 55896257 is about 382.3498366802.

The spelling of 55896257 in words is "fifty-five million, eight hundred ninety-six thousand, two hundred fifty-seven".