53091970 has 16 divisors (see below), whose sum is σ = 96121080. Its totient is φ = 21113344.

The previous prime is 53091967. The next prime is 53091979. The reversal of 53091970 is 7919035.

It can be written as a sum of positive squares in 4 ways, for example, as 52287361 + 804609 = 7231^2 + 897^2 .

It is not an unprimeable number, because it can be changed into a prime (53091979) 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 7 ways as a sum of consecutive naturals, for example, 13615 + ... + 17074.

Almost surely, 2^53091970 is an apocalyptic number.

53091970 is a deficient number, since it is larger than the sum of its proper divisors (43029110).

53091970 is a wasteful number, since it uses less digits than its factorization.

53091970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30869.

The product of its (nonzero) digits is 8505, while the sum is 34.

The square root of 53091970 is about 7286.4236769488. The cubic root of 53091970 is about 375.8457238286.

The spelling of 53091970 in words is "fifty-three million, ninety-one thousand, nine hundred seventy".