53457745 has 8 divisors (see below), whose sum is σ = 69981120. Its totient is φ = 38878320.

The previous prime is 53457743. The next prime is 53457749. The reversal of 53457745 is 54775435.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53457745 - 2¹ = 53457743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53457698 and 53457707.

It is not an unprimeable number, because it can be changed into a prime (53457743) 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, 485925 + ... + 486034.

It is an arithmetic number, because the mean of its divisors is an integer number (8747640).

Almost surely, 2^53457745 is an apocalyptic number.

53457745 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

53457745 is a deficient number, since it is larger than the sum of its proper divisors (16523375).

53457745 is a wasteful number, since it uses less digits than its factorization.

53457745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971975.

The product of its digits is 294000, while the sum is 40.

The square root of 53457745 is about 7311.4803562617. The cubic root of 53457745 is about 376.7068739112.

The spelling of 53457745 in words is "fifty-three million, four hundred fifty-seven thousand, seven hundred forty-five".