53330145 has 24 divisors (see below), whose sum is σ = 93793728. Its totient is φ = 25856160.

The previous prime is 53330143. The next prime is 53330149. The reversal of 53330145 is 54103335.

53330145 = T₁₅₁₇ + T₁₅₁₈ + ... + T₁₅₆₁.

It is a happy number.

It is not a de Polignac number, because 53330145 - 2¹ = 53330143 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53330143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12877 + ... + 16506.

It is an arithmetic number, because the mean of its divisors is an integer number (3908072).

Almost surely, 2^53330145 is an apocalyptic number.

53330145 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

53330145 is a deficient number, since it is larger than the sum of its proper divisors (40463583).

53330145 is a wasteful number, since it uses less digits than its factorization.

53330145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29413 (or 29402 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 24.

The square root of 53330145 is about 7302.7491398788. The cubic root of 53330145 is about 376.4069105616.

The spelling of 53330145 in words is "fifty-three million, three hundred thirty thousand, one hundred forty-five".