53907917 has 4 divisors (see below), whose sum is σ = 61609056. Its totient is φ = 46206780.

The previous prime is 53907913. The next prime is 53907949. The reversal of 53907917 is 71970935.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71970935 = 5 ⋅14394187.

It is a cyclic number.

It is not a de Polignac number, because 53907917 - 2² = 53907913 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 (53907911) 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, 3850559 + ... + 3850572.

It is an arithmetic number, because the mean of its divisors is an integer number (15402264).

Almost surely, 2^53907917 is an apocalyptic number.

It is an amenable number.

53907917 is a deficient number, since it is larger than the sum of its proper divisors (7701139).

53907917 is an equidigital number, since it uses as much as digits as its factorization.

53907917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7701138.

The product of its (nonzero) digits is 59535, while the sum is 41.

The square root of 53907917 is about 7342.2011004875. The cubic root of 53907917 is about 377.7613458603.

The spelling of 53907917 in words is "fifty-three million, nine hundred seven thousand, nine hundred seventeen".