1655464501 has 2 divisors, whose sum is σ = 1655464502. Its totient is φ = 1655464500.

The previous prime is 1655464451. The next prime is 1655464519. The reversal of 1655464501 is 1054645561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 969076900 + 686387601 = 31130^2 + 26199^2 .

It is an emirp because it is prime and its reverse (1054645561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1655464501 - 2⁷ = 1655464373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1655464561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 827732250 + 827732251.

It is an arithmetic number, because the mean of its divisors is an integer number (827732251).

Almost surely, 2^1655464501 is an apocalyptic number.

It is an amenable number.

1655464501 is a deficient number, since it is larger than the sum of its proper divisors (1).

1655464501 is an equidigital number, since it uses as much as digits as its factorization.

1655464501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72000, while the sum is 37.

The square root of 1655464501 is about 40687.3997817506. The cubic root of 1655464501 is about 1182.9688006469.

The spelling of 1655464501 in words is "one billion, six hundred fifty-five million, four hundred sixty-four thousand, five hundred one".