2495621 has 2 divisors, whose sum is σ = 2495622. Its totient is φ = 2495620.

The previous prime is 2495599. The next prime is 2495657. The reversal of 2495621 is 1265942.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1416100 + 1079521 = 1190^2 + 1039^2 .

It is a cyclic number.

It is not a de Polignac number, because 2495621 - 2⁶ = 2495557 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2495321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1247810 + 1247811.

It is an arithmetic number, because the mean of its divisors is an integer number (1247811).

2^2495621 is an apocalyptic number.

It is an amenable number.

2495621 is a deficient number, since it is larger than the sum of its proper divisors (1).

2495621 is an equidigital number, since it uses as much as digits as its factorization.

2495621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 29.

The square root of 2495621 is about 1579.7534617781. The cubic root of 2495621 is about 135.6415916191.

The spelling of 2495621 in words is "two million, four hundred ninety-five thousand, six hundred twenty-one".