654020537 has 2 divisors, whose sum is σ = 654020538. Its totient is φ = 654020536.

The previous prime is 654020533. The next prime is 654020569. The reversal of 654020537 is 735020456.

It is an a-pointer prime, because the next prime (654020569) can be obtained adding 654020537 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., 349727401 + 304293136 = 18701^2 + 17444^2 .

It is a cyclic number.

It is not a de Polignac number, because 654020537 - 2² = 654020533 is a prime.

It is not a weakly prime, because it can be changed into another prime (654020531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327010268 + 327010269.

It is an arithmetic number, because the mean of its divisors is an integer number (327010269).

Almost surely, 2^654020537 is an apocalyptic number.

It is an amenable number.

654020537 is a deficient number, since it is larger than the sum of its proper divisors (1).

654020537 is an equidigital number, since it uses as much as digits as its factorization.

654020537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 654020537 is about 25573.8252320610. The cubic root of 654020537 is about 868.0214592761.

The spelling of 654020537 in words is "six hundred fifty-four million, twenty thousand, five hundred thirty-seven".