53890949 has 4 divisors (see below), whose sum is σ = 61589664. Its totient is φ = 46192236.

The previous prime is 53890937. The next prime is 53890957. The reversal of 53890949 is 94909835.

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.

It is a cyclic number.

It is not a de Polignac number, because 53890949 - 2⁸ = 53890693 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53890919) 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, 3849347 + ... + 3849360.

It is an arithmetic number, because the mean of its divisors is an integer number (15397416).

Almost surely, 2^53890949 is an apocalyptic number.

It is an amenable number.

53890949 is a deficient number, since it is larger than the sum of its proper divisors (7698715).

53890949 is an equidigital number, since it uses as much as digits as its factorization.

53890949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7698714.

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 53890949 is about 7341.0454977476. The cubic root of 53890949 is about 377.7217071114.

The spelling of 53890949 in words is "fifty-three million, eight hundred ninety thousand, nine hundred forty-nine".