55772027 has 2 divisors, whose sum is σ = 55772028. Its totient is φ = 55772026.

The previous prime is 55772023. The next prime is 55772063. The reversal of 55772027 is 72027755.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55772027 - 2² = 55772023 is a prime.

It is a super-2 number, since 2×55772027² = 6221037991377458, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55772021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27886013 + 27886014.

It is an arithmetic number, because the mean of its divisors is an integer number (27886014).

Almost surely, 2^55772027 is an apocalyptic number.

55772027 is a deficient number, since it is larger than the sum of its proper divisors (1).

55772027 is an equidigital number, since it uses as much as digits as its factorization.

55772027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34300, while the sum is 35.

The square root of 55772027 is about 7468.0671528850. The cubic root of 55772027 is about 382.0663677712.

The spelling of 55772027 in words is "fifty-five million, seven hundred seventy-two thousand, twenty-seven".