53861378 has 8 divisors (see below), whose sum is σ = 81576768. Its totient is φ = 26669124.

The previous prime is 53861351. The next prime is 53861407. The reversal of 53861378 is 87316835.

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

It is a super-3 number, since 3×53861378³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130526 + ... + 130937.

It is an arithmetic number, because the mean of its divisors is an integer number (10197096).

Almost surely, 2^53861378 is an apocalyptic number.

53861378 is a deficient number, since it is larger than the sum of its proper divisors (27715390).

53861378 is a wasteful number, since it uses less digits than its factorization.

53861378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261568.

The product of its digits is 120960, while the sum is 41.

The square root of 53861378 is about 7339.0311349660. The cubic root of 53861378 is about 377.6526067497.

It can be divided in two parts, 538 and 61378, that added together give a palindrome (61916).

The spelling of 53861378 in words is "fifty-three million, eight hundred sixty-one thousand, three hundred seventy-eight".