2536403 has 2 divisors, whose sum is σ = 2536404. Its totient is φ = 2536402.

The previous prime is 2536393. The next prime is 2536423. The reversal of 2536403 is 3046352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2536403 - 2⁸ = 2536147 is a prime.

It is not a weakly prime, because it can be changed into another prime (2536423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1268201 + 1268202.

It is an arithmetic number, because the mean of its divisors is an integer number (1268202).

2^2536403 is an apocalyptic number.

2536403 is a deficient number, since it is larger than the sum of its proper divisors (1).

2536403 is an equidigital number, since it uses as much as digits as its factorization.

2536403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 2536403 is about 1592.6088659806. The cubic root of 2536403 is about 136.3764619990.

The spelling of 2536403 in words is "two million, five hundred thirty-six thousand, four hundred three".