53490345 has 32 divisors (see below), whose sum is σ = 90762240. Its totient is φ = 26853120.

The previous prime is 53490343. The next prime is 53490383. The reversal of 53490345 is 54309435.

53490345 = T₃₄₂ + T₃₄₃ + ... + T₇₁₁.

It is not a de Polignac number, because 53490345 - 2¹ = 53490343 is a prime.

It is a super-2 number, since 2×53490345² = 5722434016438050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53490343) 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 31 ways as a sum of consecutive naturals, for example, 15651 + ... + 18759.

It is an arithmetic number, because the mean of its divisors is an integer number (2836320).

Almost surely, 2^53490345 is an apocalyptic number.

It is an amenable number.

53490345 is a deficient number, since it is larger than the sum of its proper divisors (37271895).

53490345 is a wasteful number, since it uses less digits than its factorization.

53490345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3185.

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 53490345 is about 7313.7093871715. The cubic root of 53490345 is about 376.7834337473.

It can be divided in two parts, 53490 and 345, that added together give a palindrome (53835).

The spelling of 53490345 in words is "fifty-three million, four hundred ninety thousand, three hundred forty-five".