5497778401 has 2 divisors, whose sum is σ = 5497778402. Its totient is φ = 5497778400.

The previous prime is 5497778381. The next prime is 5497778467. The reversal of 5497778401 is 1048777945.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5493774400 + 4004001 = 74120^2 + 2001^2 .

It is a cyclic number.

It is not a de Polignac number, because 5497778401 - 2¹³ = 5497770209 is a prime.

It is not a weakly prime, because it can be changed into another prime (5497778471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2748889200 + 2748889201.

It is an arithmetic number, because the mean of its divisors is an integer number (2748889201).

Almost surely, 2^5497778401 is an apocalyptic number.

It is an amenable number.

5497778401 is a deficient number, since it is larger than the sum of its proper divisors (1).

5497778401 is an equidigital number, since it uses as much as digits as its factorization.

5497778401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1975680, while the sum is 52.

The square root of 5497778401 is about 74147.0053407418. The cubic root of 5497778401 is about 1764.9364684336.

The spelling of 5497778401 in words is "five billion, four hundred ninety-seven million, seven hundred seventy-eight thousand, four hundred one".