2509283921 has 2 divisors, whose sum is σ = 2509283922. Its totient is φ = 2509283920.

The previous prime is 2509283911. The next prime is 2509284143. The reversal of 2509283921 is 1293829052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2503901521 + 5382400 = 50039^2 + 2320^2 .

It is a cyclic number.

It is not a de Polignac number, because 2509283921 - 2¹⁸ = 2509021777 is a prime.

It is not a weakly prime, because it can be changed into another prime (2509283911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1254641960 + 1254641961.

It is an arithmetic number, because the mean of its divisors is an integer number (1254641961).

Almost surely, 2^2509283921 is an apocalyptic number.

It is an amenable number.

2509283921 is a deficient number, since it is larger than the sum of its proper divisors (1).

2509283921 is an equidigital number, since it uses as much as digits as its factorization.

2509283921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 2509283921 is about 50092.7531784788. The cubic root of 2509283921 is about 1358.8867621904.

The spelling of 2509283921 in words is "two billion, five hundred nine million, two hundred eighty-three thousand, nine hundred twenty-one".