54749213 has 2 divisors, whose sum is σ = 54749214. Its totient is φ = 54749212.

The previous prime is 54749161. The next prime is 54749237. The reversal of 54749213 is 31294745.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33616804 + 21132409 = 5798^2 + 4597^2 .

It is a cyclic number.

It is not a de Polignac number, because 54749213 - 2⁸ = 54748957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54749243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27374606 + 27374607.

It is an arithmetic number, because the mean of its divisors is an integer number (27374607).

Almost surely, 2^54749213 is an apocalyptic number.

It is an amenable number.

54749213 is a deficient number, since it is larger than the sum of its proper divisors (1).

54749213 is an equidigital number, since it uses as much as digits as its factorization.

54749213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 35.

The square root of 54749213 is about 7399.2711127516. The cubic root of 54749213 is about 379.7163464894.

The spelling of 54749213 in words is "fifty-four million, seven hundred forty-nine thousand, two hundred thirteen".