55452101 has 2 divisors, whose sum is σ = 55452102. Its totient is φ = 55452100.

The previous prime is 55452097. The next prime is 55452109. The reversal of 55452101 is 10125455.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53949025 + 1503076 = 7345^2 + 1226^2 .

It is a cyclic number.

It is not a de Polignac number, because 55452101 - 2² = 55452097 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55452109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27726050 + 27726051.

It is an arithmetic number, because the mean of its divisors is an integer number (27726051).

Almost surely, 2^55452101 is an apocalyptic number.

It is an amenable number.

55452101 is a deficient number, since it is larger than the sum of its proper divisors (1).

55452101 is an equidigital number, since it uses as much as digits as its factorization.

55452101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 55452101 is about 7446.6167485644. The cubic root of 55452101 is about 381.3344152054.

Adding to 55452101 its reverse (10125455), we get a palindrome (65577556).

The spelling of 55452101 in words is "fifty-five million, four hundred fifty-two thousand, one hundred one".