53149845 has 32 divisors (see below), whose sum is σ = 97689600. Its totient is φ = 24171840.

The previous prime is 53149843. The next prime is 53149853. The reversal of 53149845 is 54894135.

It is not a de Polignac number, because 53149845 - 2¹ = 53149843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53149843) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20956 + ... + 23354.

It is an arithmetic number, because the mean of its divisors is an integer number (3052800).

Almost surely, 2^53149845 is an apocalyptic number.

It is an amenable number.

53149845 is a deficient number, since it is larger than the sum of its proper divisors (44539755).

53149845 is a wasteful number, since it uses less digits than its factorization.

53149845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2625.

The product of its digits is 86400, while the sum is 39.

The square root of 53149845 is about 7290.3940222734. The cubic root of 53149845 is about 375.9822427294.

The spelling of 53149845 in words is "fifty-three million, one hundred forty-nine thousand, eight hundred forty-five".