54696989 has 16 divisors (see below), whose sum is σ = 59389440. Its totient is φ = 50258880.

The previous prime is 54696979. The next prime is 54697001. The reversal of 54696989 is 98969645.

It is a cyclic number.

It is not a de Polignac number, because 54696989 - 2¹⁶ = 54631453 is a prime.

It is a super-2 number, since 2×54696989² = 5983521211332242, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54696979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48767 + ... + 49875.

It is an arithmetic number, because the mean of its divisors is an integer number (3711840).

Almost surely, 2^54696989 is an apocalyptic number.

It is an amenable number.

54696989 is a deficient number, since it is larger than the sum of its proper divisors (4692451).

54696989 is a wasteful number, since it uses less digits than its factorization.

54696989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220.

The product of its digits is 4199040, while the sum is 56.

The square root of 54696989 is about 7395.7412745444. The cubic root of 54696989 is about 379.5955738855.

The spelling of 54696989 in words is "fifty-four million, six hundred ninety-six thousand, nine hundred eighty-nine".