55251941 has 2 divisors, whose sum is σ = 55251942. Its totient is φ = 55251940.

The previous prime is 55251899. The next prime is 55251967. The reversal of 55251941 is 14915255.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53963716 + 1288225 = 7346^2 + 1135^2 .

It is a cyclic number.

It is not a de Polignac number, because 55251941 - 2²² = 51057637 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 55251898 and 55251907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55251041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27625970 + 27625971.

It is an arithmetic number, because the mean of its divisors is an integer number (27625971).

Almost surely, 2^55251941 is an apocalyptic number.

It is an amenable number.

55251941 is a deficient number, since it is larger than the sum of its proper divisors (1).

55251941 is an equidigital number, since it uses as much as digits as its factorization.

55251941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9000, while the sum is 32.

The square root of 55251941 is about 7433.1649383019. The cubic root of 55251941 is about 380.8750402520.

The spelling of 55251941 in words is "fifty-five million, two hundred fifty-one thousand, nine hundred forty-one".