249584020537 has 2 divisors, whose sum is σ = 249584020538. Its totient is φ = 249584020536.

The previous prime is 249584020481. The next prime is 249584020589. The reversal of 249584020537 is 735020485942.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 158196312121 + 91387708416 = 397739^2 + 302304^2 .

It is a cyclic number.

It is not a de Polignac number, because 249584020537 - 2¹⁵ = 249583987769 is a prime.

It is not a weakly prime, because it can be changed into another prime (249584020597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124792010268 + 124792010269.

It is an arithmetic number, because the mean of its divisors is an integer number (124792010269).

Almost surely, 2^249584020537 is an apocalyptic number.

It is an amenable number.

249584020537 is a deficient number, since it is larger than the sum of its proper divisors (1).

249584020537 is an equidigital number, since it uses as much as digits as its factorization.

249584020537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2419200, while the sum is 49.

The spelling of 249584020537 in words is "two hundred forty-nine billion, five hundred eighty-four million, twenty thousand, five hundred thirty-seven".