53952139 has 2 divisors, whose sum is σ = 53952140. Its totient is φ = 53952138.

The previous prime is 53952133. The next prime is 53952247. The reversal of 53952139 is 93125935.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53952139 - 2³ = 53952131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53952098 and 53952107.

It is not a weakly prime, because it can be changed into another prime (53952131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26976069 + 26976070.

It is an arithmetic number, because the mean of its divisors is an integer number (26976070).

Almost surely, 2^53952139 is an apocalyptic number.

53952139 is a deficient number, since it is larger than the sum of its proper divisors (1).

53952139 is an equidigital number, since it uses as much as digits as its factorization.

53952139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36450, while the sum is 37.

The square root of 53952139 is about 7345.2119778806. The cubic root of 53952139 is about 377.8646132918.

It can be divided in two parts, 5 and 3952139, that added together give a square (3952144 = 1988²).

The spelling of 53952139 in words is "fifty-three million, nine hundred fifty-two thousand, one hundred thirty-nine".