45955009 has 2 divisors, whose sum is σ = 45955010. Its totient is φ = 45955008.

The previous prime is 45954991. The next prime is 45955031. The reversal of 45955009 is 90055954.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39690000 + 6265009 = 6300^2 + 2503^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45955009 is a prime.

It is a super-2 number, since 2×45955009² = 4223725704380162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45958009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22977504 + 22977505.

It is an arithmetic number, because the mean of its divisors is an integer number (22977505).

Almost surely, 2^45955009 is an apocalyptic number.

It is an amenable number.

45955009 is a deficient number, since it is larger than the sum of its proper divisors (1).

45955009 is an equidigital number, since it uses as much as digits as its factorization.

45955009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40500, while the sum is 37.

The square root of 45955009 is about 6779.0123911968. The cubic root of 45955009 is about 358.1879338468.

It can be divided in two parts, 4595 and 5009, that added together give a square (9604 = 98²).

The spelling of 45955009 in words is "forty-five million, nine hundred fifty-five thousand, nine".