53897457 has 8 divisors (see below), whose sum is σ = 74341440. Its totient is φ = 34692560.

The previous prime is 53897453. The next prime is 53897479. The reversal of 53897457 is 75479835.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53897457 - 2² = 53897453 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53897453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309669 + ... + 309842.

It is an arithmetic number, because the mean of its divisors is an integer number (9292680).

Almost surely, 2^53897457 is an apocalyptic number.

It is an amenable number.

53897457 is a deficient number, since it is larger than the sum of its proper divisors (20443983).

53897457 is a wasteful number, since it uses less digits than its factorization.

53897457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619543.

The product of its digits is 1058400, while the sum is 48.

The square root of 53897457 is about 7341.4887454794. The cubic root of 53897457 is about 377.7369113586.

The spelling of 53897457 in words is "fifty-three million, eight hundred ninety-seven thousand, four hundred fifty-seven".