53078239 has 8 divisors (see below), whose sum is σ = 54606608. Its totient is φ = 51554880.

The previous prime is 53078219. The next prime is 53078243. The reversal of 53078239 is 93287035.

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 53078239 - 2²⁵ = 19523807 is a prime.

It is a super-2 number, since 2×53078239² = 5634598910682242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53078198 and 53078207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53078209) 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, 33904 + ... + 35434.

It is an arithmetic number, because the mean of its divisors is an integer number (6825826).

Almost surely, 2^53078239 is an apocalyptic number.

53078239 is a deficient number, since it is larger than the sum of its proper divisors (1528369).

53078239 is a wasteful number, since it uses less digits than its factorization.

53078239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2505.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 53078239 is about 7285.4813842326. The cubic root of 53078239 is about 375.8133197909.

The spelling of 53078239 in words is "fifty-three million, seventy-eight thousand, two hundred thirty-nine".