3640252501 has 2 divisors, whose sum is σ = 3640252502. Its totient is φ = 3640252500.

The previous prime is 3640252487. The next prime is 3640252519. The reversal of 3640252501 is 1052520463.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2816849476 + 823403025 = 53074^2 + 28695^2 .

It is a cyclic number.

It is not a de Polignac number, because 3640252501 - 2⁷ = 3640252373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3640252501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3640252571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1820126250 + 1820126251.

It is an arithmetic number, because the mean of its divisors is an integer number (1820126251).

Almost surely, 2^3640252501 is an apocalyptic number.

It is an amenable number.

3640252501 is a deficient number, since it is larger than the sum of its proper divisors (1).

3640252501 is an equidigital number, since it uses as much as digits as its factorization.

3640252501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 3640252501 is about 60334.5050613660. The cubic root of 3640252501 is about 1538.3099045870.

Adding to 3640252501 its reverse (1052520463), we get a palindrome (4692772964).

The spelling of 3640252501 in words is "three billion, six hundred forty million, two hundred fifty-two thousand, five hundred one".