54651897 has 12 divisors (see below), whose sum is σ = 79021540. Its totient is φ = 36397728.

The previous prime is 54651871. The next prime is 54651907. The reversal of 54651897 is 79815645.

54651897 is a `hidden beast` number, since 5 + 46 + 518 + 97 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 49829481 + 4822416 = 7059^2 + 2196^2 .

It is not a de Polignac number, because 54651897 - 2²⁰ = 53603321 is a prime.

It is a super-3 number, since 3×54651897³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54651397) 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, 8679 + ... + 13587.

Almost surely, 2^54651897 is an apocalyptic number.

It is an amenable number.

54651897 is a deficient number, since it is larger than the sum of its proper divisors (24369643).

54651897 is a wasteful number, since it uses less digits than its factorization.

54651897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6152 (or 6149 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 54651897 is about 7392.6921348045. The cubic root of 54651897 is about 379.4912328012.

The spelling of 54651897 in words is "fifty-four million, six hundred fifty-one thousand, eight hundred ninety-seven".