48155969 has 2 divisors, whose sum is σ = 48155970. Its totient is φ = 48155968.

The previous prime is 48155929. The next prime is 48155971. The reversal of 48155969 is 96955184.

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., 25877569 + 22278400 = 5087^2 + 4720^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48155969 is a prime.

It is a super-2 number, since 2×48155969² = 4637994700657922, which contains 22 as substring.

Together with 48155971, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (48155909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24077984 + 24077985.

It is an arithmetic number, because the mean of its divisors is an integer number (24077985).

Almost surely, 2^48155969 is an apocalyptic number.

It is an amenable number.

48155969 is a deficient number, since it is larger than the sum of its proper divisors (1).

48155969 is an equidigital number, since it uses as much as digits as its factorization.

48155969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 47.

The square root of 48155969 is about 6939.4501943598. The cubic root of 48155969 is about 363.8173242100.

The spelling of 48155969 in words is "forty-eight million, one hundred fifty-five thousand, nine hundred sixty-nine".