54915245 has 24 divisors (see below), whose sum is σ = 82787712. Its totient is φ = 34230240.

The previous prime is 54915233. The next prime is 54915247. The reversal of 54915245 is 54251945.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-54915245 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54915247) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2249 + ... + 10718.

It is an arithmetic number, because the mean of its divisors is an integer number (3449488).

Almost surely, 2^54915245 is an apocalyptic number.

54915245 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54915245 is a deficient number, since it is larger than the sum of its proper divisors (27872467).

54915245 is a wasteful number, since it uses less digits than its factorization.

54915245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13001 (or 12990 counting only the distinct ones).

The product of its digits is 36000, while the sum is 35.

The square root of 54915245 is about 7410.4821030753. The cubic root of 54915245 is about 380.0998006565.

The spelling of 54915245 in words is "fifty-four million, nine hundred fifteen thousand, two hundred forty-five".