53457961 has 4 divisors (see below), whose sum is σ = 54009172. Its totient is φ = 52906752.

The previous prime is 53457947. The next prime is 53457977. The reversal of 53457961 is 16975435.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10686361 + 42771600 = 3269^2 + 6540^2 .

It is a cyclic number.

It is not a de Polignac number, because 53457961 - 2⁹ = 53457449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53457931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275460 + ... + 275653.

It is an arithmetic number, because the mean of its divisors is an integer number (13502293).

Almost surely, 2^53457961 is an apocalyptic number.

It is an amenable number.

53457961 is a deficient number, since it is larger than the sum of its proper divisors (551211).

53457961 is an equidigital number, since it uses as much as digits as its factorization.

53457961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551210.

The product of its digits is 113400, while the sum is 40.

The square root of 53457961 is about 7311.4951275372. The cubic root of 53457961 is about 376.7073812813.

The spelling of 53457961 in words is "fifty-three million, four hundred fifty-seven thousand, nine hundred sixty-one".