53897419 has 4 divisors (see below), whose sum is σ = 55354144. Its totient is φ = 52440696.

The previous prime is 53897407. The next prime is 53897423. The reversal of 53897419 is 91479835.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91479835 = 5 ⋅18295967.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53897419 is a prime.

It is a super-2 number, since 2×53897419² = 5809863549723122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53897479) 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, 728307 + ... + 728380.

It is an arithmetic number, because the mean of its divisors is an integer number (13838536).

Almost surely, 2^53897419 is an apocalyptic number.

53897419 is a deficient number, since it is larger than the sum of its proper divisors (1456725).

53897419 is a wasteful number, since it uses less digits than its factorization.

53897419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456724.

The product of its digits is 272160, while the sum is 46.

The square root of 53897419 is about 7341.4861574480. The cubic root of 53897419 is about 377.7368225850.

The spelling of 53897419 in words is "fifty-three million, eight hundred ninety-seven thousand, four hundred nineteen".