53378131 has 4 divisors (see below), whose sum is σ = 53406000. Its totient is φ = 53350264.

The previous prime is 53378119. The next prime is 53378137. The reversal of 53378131 is 13187335.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 53378131 - 2¹¹ = 53376083 is a prime.

It is a super-2 number, since 2×53378131² = 5698449738106322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53378093 and 53378102.

It is not an unprimeable number, because it can be changed into a prime (53378137) 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, 10831 + ... + 14968.

It is an arithmetic number, because the mean of its divisors is an integer number (13351500).

Almost surely, 2^53378131 is an apocalyptic number.

53378131 is a deficient number, since it is larger than the sum of its proper divisors (27869).

53378131 is a wasteful number, since it uses less digits than its factorization.

53378131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27868.

The product of its digits is 7560, while the sum is 31.

The square root of 53378131 is about 7306.0338761875. The cubic root of 53378131 is about 376.5197726042.

The spelling of 53378131 in words is "fifty-three million, three hundred seventy-eight thousand, one hundred thirty-one".