53196781 has 8 divisors (see below), whose sum is σ = 58404384. Its totient is φ = 48051120.

The previous prime is 53196763. The next prime is 53196797. The reversal of 53196781 is 18769135.

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 53196781 - 2⁵ = 53196749 is a prime.

It is a super-2 number, since 2×53196781² = 5659795017523922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53196761) 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, 13675 + ... + 17128.

It is an arithmetic number, because the mean of its divisors is an integer number (7300548).

Almost surely, 2^53196781 is an apocalyptic number.

It is an amenable number.

53196781 is a deficient number, since it is larger than the sum of its proper divisors (5207603).

53196781 is a wasteful number, since it uses less digits than its factorization.

53196781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30971.

The product of its digits is 45360, while the sum is 40.

The square root of 53196781 is about 7293.6123423171. The cubic root of 53196781 is about 376.0928853251.

It can be divided in two parts, 5319 and 6781, that added together give a square (12100 = 110²).

The spelling of 53196781 in words is "fifty-three million, one hundred ninety-six thousand, seven hundred eighty-one".