56253403 has 2 divisors, whose sum is σ = 56253404. Its totient is φ = 56253402.

The previous prime is 56253383. The next prime is 56253409. The reversal of 56253403 is 30435265.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56253403 - 2²⁵ = 22698971 is a prime.

It is equal to p_3352591 and since 56253403 and 3352591 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (56253409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28126701 + 28126702.

It is an arithmetic number, because the mean of its divisors is an integer number (28126702).

Almost surely, 2^56253403 is an apocalyptic number.

56253403 is a deficient number, since it is larger than the sum of its proper divisors (1).

56253403 is an equidigital number, since it uses as much as digits as its factorization.

56253403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 56253403 is about 7500.2268632355. The cubic root of 56253403 is about 383.1624427106.

Adding to 56253403 its reverse (30435265), we get a palindrome (86688668).

The spelling of 56253403 in words is "fifty-six million, two hundred fifty-three thousand, four hundred three".