55762409 has 2 divisors, whose sum is σ = 55762410. Its totient is φ = 55762408.

The previous prime is 55762319. The next prime is 55762417. The reversal of 55762409 is 90426755.

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., 41886784 + 13875625 = 6472^2 + 3725^2 .

It is a cyclic number.

It is not a de Polignac number, because 55762409 - 2⁸ = 55762153 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55762429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27881204 + 27881205.

It is an arithmetic number, because the mean of its divisors is an integer number (27881205).

Almost surely, 2^55762409 is an apocalyptic number.

It is an amenable number.

55762409 is a deficient number, since it is larger than the sum of its proper divisors (1).

55762409 is an equidigital number, since it uses as much as digits as its factorization.

55762409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 55762409 is about 7467.4231834014. The cubic root of 55762409 is about 382.0444038000.

The spelling of 55762409 in words is "fifty-five million, seven hundred sixty-two thousand, four hundred nine".