54400453 has 2 divisors, whose sum is σ = 54400454. Its totient is φ = 54400452.

The previous prime is 54400447. The next prime is 54400469. The reversal of 54400453 is 35400445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51365889 + 3034564 = 7167^2 + 1742^2 .

It is a cyclic number.

It is not a de Polignac number, because 54400453 - 2⁵ = 54400421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54401453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27200226 + 27200227.

It is an arithmetic number, because the mean of its divisors is an integer number (27200227).

Almost surely, 2^54400453 is an apocalyptic number.

It is an amenable number.

54400453 is a deficient number, since it is larger than the sum of its proper divisors (1).

54400453 is an equidigital number, since it uses as much as digits as its factorization.

54400453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 54400453 is about 7375.6662749883. Note that the first 3 decimals coincide. The cubic root of 54400453 is about 378.9083466178.

Adding to 54400453 its reverse (35400445), we get a palindrome (89800898).

The spelling of 54400453 in words is "fifty-four million, four hundred thousand, four hundred fifty-three".