2642507501 has 2 divisors, whose sum is σ = 2642507502. Its totient is φ = 2642507500.

The previous prime is 2642507473. The next prime is 2642507533. The reversal of 2642507501 is 1057052462.

It is an a-pointer prime, because the next prime (2642507533) can be obtained adding 2642507501 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1802087401 + 840420100 = 42451^2 + 28990^2 .

It is a cyclic number.

It is not a de Polignac number, because 2642507501 - 2³⁰ = 1568765677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2642507561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1321253750 + 1321253751.

It is an arithmetic number, because the mean of its divisors is an integer number (1321253751).

Almost surely, 2^2642507501 is an apocalyptic number.

It is an amenable number.

2642507501 is a deficient number, since it is larger than the sum of its proper divisors (1).

2642507501 is an equidigital number, since it uses as much as digits as its factorization.

2642507501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 2642507501 is about 51405.3256093180. The cubic root of 2642507501 is about 1382.5220805976.

Adding to 2642507501 its reverse (1057052462), we get a palindrome (3699559963).

The spelling of 2642507501 in words is "two billion, six hundred forty-two million, five hundred seven thousand, five hundred one".