2455556149 has 2 divisors, whose sum is σ = 2455556150. Its totient is φ = 2455556148.

The previous prime is 2455556113. The next prime is 2455556167. The reversal of 2455556149 is 9416555542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2291536900 + 164019249 = 47870^2 + 12807^2 .

It is a cyclic number.

It is not a de Polignac number, because 2455556149 - 2⁷ = 2455556021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2455556099 and 2455556108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2455556749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1227778074 + 1227778075.

It is an arithmetic number, because the mean of its divisors is an integer number (1227778075).

Almost surely, 2^2455556149 is an apocalyptic number.

It is an amenable number.

2455556149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2455556149 is an equidigital number, since it uses as much as digits as its factorization.

2455556149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080000, while the sum is 46.

The square root of 2455556149 is about 49553.5684789703. The cubic root of 2455556149 is about 1349.1180611853.

The spelling of 2455556149 in words is "two billion, four hundred fifty-five million, five hundred fifty-six thousand, one hundred forty-nine".