53921019 has 16 divisors (see below), whose sum is σ = 72898560. Its totient is φ = 35449440.

The previous prime is 53921017. The next prime is 53921047. The reversal of 53921019 is 91012935.

It is not a de Polignac number, because 53921019 - 2¹ = 53921017 is a prime.

It is a super-2 number, since 2×53921019² = 5814952579996722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53921017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79309 + ... + 79985.

It is an arithmetic number, because the mean of its divisors is an integer number (4556160).

Almost surely, 2^53921019 is an apocalyptic number.

53921019 is a deficient number, since it is larger than the sum of its proper divisors (18977541).

53921019 is a wasteful number, since it uses less digits than its factorization.

53921019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010.

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 53921019 is about 7343.0932855303. The cubic root of 53921019 is about 377.7919476006.

The spelling of 53921019 in words is "fifty-three million, nine hundred twenty-one thousand, nineteen".