40507603 has 2 divisors, whose sum is σ = 40507604. Its totient is φ = 40507602.

The previous prime is 40507589. The next prime is 40507613. The reversal of 40507603 is 30670504.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40507603 - 2²⁵ = 6953171 is a prime.

It is not a weakly prime, because it can be changed into another prime (40507613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20253801 + 20253802.

It is an arithmetic number, because the mean of its divisors is an integer number (20253802).

Almost surely, 2^40507603 is an apocalyptic number.

40507603 is a deficient number, since it is larger than the sum of its proper divisors (1).

40507603 is an equidigital number, since it uses as much as digits as its factorization.

40507603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 40507603 is about 6364.5583507420. The cubic root of 40507603 is about 343.4357609582.

The spelling of 40507603 in words is "forty million, five hundred seven thousand, six hundred three".