53437457 has 2 divisors, whose sum is σ = 53437458. Its totient is φ = 53437456.

The previous prime is 53437429. The next prime is 53437463. The reversal of 53437457 is 75473435.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41938576 + 11498881 = 6476^2 + 3391^2 .

It is a cyclic number.

It is not a de Polignac number, because 53437457 - 2⁶ = 53437393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53437457.

It is not a weakly prime, because it can be changed into another prime (53437057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26718728 + 26718729.

It is an arithmetic number, because the mean of its divisors is an integer number (26718729).

Almost surely, 2^53437457 is an apocalyptic number.

It is an amenable number.

53437457 is a deficient number, since it is larger than the sum of its proper divisors (1).

53437457 is an equidigital number, since it uses as much as digits as its factorization.

53437457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 176400, while the sum is 38.

The square root of 53437457 is about 7310.0928174682. The cubic root of 53437457 is about 376.6592126160.

The spelling of 53437457 in words is "fifty-three million, four hundred thirty-seven thousand, four hundred fifty-seven".