10402501 has 2 divisors, whose sum is σ = 10402502. Its totient is φ = 10402500.

The previous prime is 10402493. The next prime is 10402523. The reversal of 10402501 is 10520401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6890625 + 3511876 = 2625^2 + 1874^2 .

It is an emirp because it is prime and its reverse (10520401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10402501 - 2³ = 10402493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10402201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5201250 + 5201251.

It is an arithmetic number, because the mean of its divisors is an integer number (5201251).

Almost surely, 2^10402501 is an apocalyptic number.

It is an amenable number.

10402501 is a deficient number, since it is larger than the sum of its proper divisors (1).

10402501 is an equidigital number, since it uses as much as digits as its factorization.

10402501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 10402501 is about 3225.2908395988. The cubic root of 10402501 is about 218.2960724765.

Adding to 10402501 its reverse (10520401), we get a palindrome (20922902).

The spelling of 10402501 in words is "ten million, four hundred two thousand, five hundred one".