1655402953 has 2 divisors, whose sum is σ = 1655402954. Its totient is φ = 1655402952.

The previous prime is 1655402939. The next prime is 1655402993. The reversal of 1655402953 is 3592045561.

It is an a-pointer prime, because the next prime (1655402993) can be obtained adding 1655402953 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1213268224 + 442134729 = 34832^2 + 21027^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1655402953 is a prime.

It is a super-2 number, since 2×1655402953² = 5480717873602240418, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1655402993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 827701476 + 827701477.

It is an arithmetic number, because the mean of its divisors is an integer number (827701477).

Almost surely, 2^1655402953 is an apocalyptic number.

It is an amenable number.

1655402953 is a deficient number, since it is larger than the sum of its proper divisors (1).

1655402953 is an equidigital number, since it uses as much as digits as its factorization.

1655402953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162000, while the sum is 40.

The square root of 1655402953 is about 40686.6434226270. The cubic root of 1655402953 is about 1182.9541400554.

The spelling of 1655402953 in words is "one billion, six hundred fifty-five million, four hundred two thousand, nine hundred fifty-three".