53650015 has 12 divisors (see below), whose sum is σ = 67949064. Its totient is φ = 40659696.

The previous prime is 53650013. The next prime is 53650019. The reversal of 53650015 is 51005635.

It is not a de Polignac number, because 53650015 - 2¹ = 53650013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53650013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13057 + ... + 16666.

It is an arithmetic number, because the mean of its divisors is an integer number (5662422).

Almost surely, 2^53650015 is an apocalyptic number.

53650015 is a deficient number, since it is larger than the sum of its proper divisors (14299049).

53650015 is a wasteful number, since it uses less digits than its factorization.

53650015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29766 (or 29747 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 53650015 is about 7324.6170548364. The cubic root of 53650015 is about 377.1579639498.

The spelling of 53650015 in words is "fifty-three million, six hundred fifty thousand, fifteen".