1653736057 has 2 divisors, whose sum is σ = 1653736058. Its totient is φ = 1653736056.

The previous prime is 1653736043. The next prime is 1653736069. The reversal of 1653736057 is 7506373561.

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., 1238758416 + 414977641 = 35196^2 + 20371^2 .

It is a cyclic number.

It is not a de Polignac number, because 1653736057 - 2⁷ = 1653735929 is a prime.

It is not a weakly prime, because it can be changed into another prime (1653736027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 826868028 + 826868029.

It is an arithmetic number, because the mean of its divisors is an integer number (826868029).

Almost surely, 2^1653736057 is an apocalyptic number.

It is an amenable number.

1653736057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1653736057 is an equidigital number, since it uses as much as digits as its factorization.

1653736057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 396900, while the sum is 43.

The square root of 1653736057 is about 40666.1537030489. The cubic root of 1653736057 is about 1182.5569510122.

The spelling of 1653736057 in words is "one billion, six hundred fifty-three million, seven hundred thirty-six thousand, fifty-seven".