54990769 has 24 divisors (see below), whose sum is σ = 62544960. Its totient is φ = 48213792.

The previous prime is 54990743. The next prime is 54990781. The reversal of 54990769 is 96709945.

It is not a de Polignac number, because 54990769 - 2¹⁹ = 54466481 is a prime.

It is a super-2 number, since 2×54990769² = 6047969350422722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54990739) 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, 307122 + ... + 307300.

It is an arithmetic number, because the mean of its divisors is an integer number (2606040).

Almost surely, 2^54990769 is an apocalyptic number.

It is an amenable number.

54990769 is a deficient number, since it is larger than the sum of its proper divisors (7554191).

54990769 is a wasteful number, since it uses less digits than its factorization.

54990769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 49.

The square root of 54990769 is about 7415.5761070870. The cubic root of 54990769 is about 380.2739690953.

The spelling of 54990769 in words is "fifty-four million, nine hundred ninety thousand, seven hundred sixty-nine".