53481957 has 16 divisors (see below), whose sum is σ = 72669312. Its totient is φ = 34979840.

The previous prime is 53481947. The next prime is 53481991. The reversal of 53481957 is 75918435.

It is a cyclic number.

It is not a de Polignac number, because 53481957 - 2¹⁵ = 53449189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53481947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54253 + ... + 55229.

It is an arithmetic number, because the mean of its divisors is an integer number (4541832).

Almost surely, 2^53481957 is an apocalyptic number.

It is an amenable number.

53481957 is a deficient number, since it is larger than the sum of its proper divisors (19187355).

53481957 is a wasteful number, since it uses less digits than its factorization.

53481957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308.

The product of its digits is 151200, while the sum is 42.

The square root of 53481957 is about 7313.1359210670. The cubic root of 53481957 is about 376.7637378273.

The spelling of 53481957 in words is "fifty-three million, four hundred eighty-one thousand, nine hundred fifty-seven".