53996619 has 4 divisors (see below), whose sum is σ = 71995496. Its totient is φ = 35997744.

The previous prime is 53996581. The next prime is 53996627. The reversal of 53996619 is 91669935.

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

It is not a de Polignac number, because 53996619 - 2⁷ = 53996491 is a prime.

It is a super-2 number, since 2×53996619² = 5831269726862322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53996629) 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, 8999434 + ... + 8999439.

It is an arithmetic number, because the mean of its divisors is an integer number (17998874).

Almost surely, 2^53996619 is an apocalyptic number.

53996619 is a deficient number, since it is larger than the sum of its proper divisors (17998877).

53996619 is a wasteful number, since it uses less digits than its factorization.

53996619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17998876.

The product of its digits is 393660, while the sum is 48.

The square root of 53996619 is about 7348.2391768369. The cubic root of 53996619 is about 377.9684262981.

It can be divided in two parts, 53996 and 619, that added together give a triangular number (54615 = T₃₃₀).

The spelling of 53996619 in words is "fifty-three million, nine hundred ninety-six thousand, six hundred nineteen".