55378753 has 2 divisors, whose sum is σ = 55378754. Its totient is φ = 55378752.

The previous prime is 55378747. The next prime is 55378769. The reversal of 55378753 is 35787355.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53758224 + 1620529 = 7332^2 + 1273^2 .

It is a cyclic number.

It is not a de Polignac number, because 55378753 - 2¹⁷ = 55247681 is a prime.

It is not a weakly prime, because it can be changed into another prime (55378723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27689376 + 27689377.

It is an arithmetic number, because the mean of its divisors is an integer number (27689377).

Almost surely, 2^55378753 is an apocalyptic number.

It is an amenable number.

55378753 is a deficient number, since it is larger than the sum of its proper divisors (1).

55378753 is an equidigital number, since it uses as much as digits as its factorization.

55378753 is an evil number, because the sum of its binary digits is even.

The product of its digits is 441000, while the sum is 43.

The square root of 55378753 is about 7441.6901977978. The cubic root of 55378753 is about 381.1662072233.

The spelling of 55378753 in words is "fifty-five million, three hundred seventy-eight thousand, seven hundred fifty-three".