54662509 has 4 divisors (see below), whose sum is σ = 59631840. Its totient is φ = 49693180.

The previous prime is 54662459. The next prime is 54662521. The reversal of 54662509 is 90526645.

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 54662509 - 2¹¹ = 54660461 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 (54662609) 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, 2484649 + ... + 2484670.

It is an arithmetic number, because the mean of its divisors is an integer number (14907960).

Almost surely, 2^54662509 is an apocalyptic number.

It is an amenable number.

54662509 is a deficient number, since it is larger than the sum of its proper divisors (4969331).

54662509 is a wasteful number, since it uses less digits than its factorization.

54662509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4969330.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 54662509 is about 7393.4098357930. The cubic root of 54662509 is about 379.5157937073.

The spelling of 54662509 in words is "fifty-four million, six hundred sixty-two thousand, five hundred nine".