53930491 has 4 divisors (see below), whose sum is σ = 54454192. Its totient is φ = 53406792.

The previous prime is 53930489. The next prime is 53930507. The reversal of 53930491 is 19403935.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53930491 - 2¹ = 53930489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53900491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261696 + ... + 261901.

It is an arithmetic number, because the mean of its divisors is an integer number (13613548).

Almost surely, 2^53930491 is an apocalyptic number.

53930491 is a deficient number, since it is larger than the sum of its proper divisors (523701).

53930491 is a wasteful number, since it uses less digits than its factorization.

53930491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523700.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 53930491 is about 7343.7382170118. The cubic root of 53930491 is about 377.8140678293.

The spelling of 53930491 in words is "fifty-three million, nine hundred thirty thousand, four hundred ninety-one".