53197451 has 4 divisors (see below), whose sum is σ = 53549904. Its totient is φ = 52845000.

The previous prime is 53197421. The next prime is 53197477. The reversal of 53197451 is 15479135.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53197451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53197411) 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, 176000 + ... + 176301.

It is an arithmetic number, because the mean of its divisors is an integer number (13387476).

Almost surely, 2^53197451 is an apocalyptic number.

53197451 is a deficient number, since it is larger than the sum of its proper divisors (352453).

53197451 is a wasteful number, since it uses less digits than its factorization.

53197451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352452.

The product of its digits is 18900, while the sum is 35.

The square root of 53197451 is about 7293.6582727737. The cubic root of 53197451 is about 376.0944642501.

The spelling of 53197451 in words is "fifty-three million, one hundred ninety-seven thousand, four hundred fifty-one".