54370891 has 2 divisors, whose sum is σ = 54370892. Its totient is φ = 54370890.

The previous prime is 54370861. The next prime is 54370903. The reversal of 54370891 is 19807345.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54370891 - 2⁷ = 54370763 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54370891.

It is not a weakly prime, because it can be changed into another prime (54370831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27185445 + 27185446.

It is an arithmetic number, because the mean of its divisors is an integer number (27185446).

Almost surely, 2^54370891 is an apocalyptic number.

54370891 is a deficient number, since it is larger than the sum of its proper divisors (1).

54370891 is an equidigital number, since it uses as much as digits as its factorization.

54370891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 54370891 is about 7373.6619803189. The cubic root of 54370891 is about 378.8396994067.

The spelling of 54370891 in words is "fifty-four million, three hundred seventy thousand, eight hundred ninety-one".