56724949 has 2 divisors, whose sum is σ = 56724950. Its totient is φ = 56724948.

The previous prime is 56724919. The next prime is 56724973. The reversal of 56724949 is 94942765.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51051025 + 5673924 = 7145^2 + 2382^2 .

It is a cyclic number.

It is not a de Polignac number, because 56724949 - 2¹³ = 56716757 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56724899 and 56724908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56724919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28362474 + 28362475.

It is an arithmetic number, because the mean of its divisors is an integer number (28362475).

Almost surely, 2^56724949 is an apocalyptic number.

It is an amenable number.

56724949 is a deficient number, since it is larger than the sum of its proper divisors (1).

56724949 is an equidigital number, since it uses as much as digits as its factorization.

56724949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 46.

The square root of 56724949 is about 7531.5967098617. The cubic root of 56724949 is about 384.2300889754.

The spelling of 56724949 in words is "fifty-six million, seven hundred twenty-four thousand, nine hundred forty-nine".