53677909 has 2 divisors, whose sum is σ = 53677910. Its totient is φ = 53677908.

The previous prime is 53677879. The next prime is 53677913. The reversal of 53677909 is 90977635.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35640900 + 18037009 = 5970^2 + 4247^2 .

It is a cyclic number.

It is not a de Polignac number, because 53677909 - 2⁷ = 53677781 is a prime.

It is a super-2 number, since 2×53677909² = 5762635829224562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53677999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26838954 + 26838955.

It is an arithmetic number, because the mean of its divisors is an integer number (26838955).

Almost surely, 2^53677909 is an apocalyptic number.

It is an amenable number.

53677909 is a deficient number, since it is larger than the sum of its proper divisors (1).

53677909 is an equidigital number, since it uses as much as digits as its factorization.

53677909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 357210, while the sum is 46.

The square root of 53677909 is about 7326.5209342498. The cubic root of 53677909 is about 377.2233172803.

The spelling of 53677909 in words is "fifty-three million, six hundred seventy-seven thousand, nine hundred nine".